Unfortunately broad performance claims are common in the consumer marketplace, which are difficult or impossible for a typical consumer to verify.

Unfortunately, the use of IPC for almost all tasks turned out to have serious performance impact.

Unfortunately the equipment also greatly slowed the vehicle, with cross-country performance reduced to about 15 km / h.

Unfortunately, she has few marketable performance skills.

Unfortunately for New York listeners, a major thunderstorm virtually obliterated the NBC radio signals there, but the performance was heard elsewhere and preserved on transcription discs.

Unfortunately, performance was below expectations, roughly on par with contemporaneous propeller-driven aircraft, an outcome generally attributed to the extremely short development timeframe required by the USAAF, as well as the intense secrecy imposed on the project.

Unfortunately, Louis leaves for New York to help arrange a comeback performance for her at Carnegie Hall, leaving Billie to head to California without him.

Unfortunately, the contract was instead awarded to the somewhat inferior Curtiss P-40, but the Army Air Corps were very pleased with the aircraft's medium-and high-altitude performance and ordered 13 additional AP-4s for testing.

Unfortunately for KKR, size would not equate with success as the high purchase price and debt load would burden the performance of the investment.

Unfortunately, bone problems due to childhood malnutrition forced her to abandon violin performance past her teen years.

Unfortunately, higher fuel prices and performance-car insurance surcharges deterred many buyers as the interest in high performance waned.

Unfortunately, even on an architecture that meets Popek and Goldberg's requirements, the performance of a virtual machine can differ significantly from the actual hardware.

Unfortunately, Daejeon's poor league performance from the previous year was carried into the 2002 season, and the club finished last again, and by some margin, having won but a single game throughout the season.

Unfortunately this increased mid-season performance did not translate into hard results as the team were involved in a number of first-lap accidents, notably at Monaco, Indianapolis and Montreal, and the team was disqualified from the German Grand Prix for running a flexible wing in contravention of the sport's technical regulations.

Unfortunately for Spence, this performance was not enough to save his seat at Lotus, and at the end of the season he found himself out of a drive.

Unfortunately, Harris's performance in his 250th match was curtailed by a serious shoulder injury, and the future of his career is in some doubt.

Unfortunately, Raiders couldn ’ t replicate the same performance and crashed to an 81-66 defeat at the hands of eventual winners Guildford.

Unfortunately, most of Sabra's music has now been lost and only a few examples of his work remain in the performance repertoire.

Jim Cantiello of MTV noted that Stevens ' performance of the song was her weakest performance in the show, stating " Unfortunately, her uneven vocals on ' Breakaway ' exposed her youthful inexperience.

Unfortunately this proved to be a serious performance issue, requiring several trips in and out of the kernel ( with resulting context switches along with it ) as the various layers of the VM system called each other.

Unfortunately, however, no suitable tenor was available in Florence for the taxing role of Carlo, and so Verdi decided to complete Macbeth first for performance in Florence and then produce I masnadieri in London.

Unfortunately his performance was lacking, although he was able to gain a stage win.

Unfortunately, the performance of this song did not go as well as planned as the band's timing was off and Bono was having difficulty with his voice.

Unfortunately for James, this diplomatic negotiation with Spain proved generally unpopular, both with the public and James's court, with ' Arminian ' divines providing a unique source of support for the proposed union.

Unfortunately, while the Keyboard Component was an ambitious piece of engineering for its time, it suffered from reliability problems and proved to be expensive to produce.

Unfortunately, Friedrich proved too ambitious for his own good, and quickly ran the formerly profitable forge into the ground.

Unfortunately, Basil's asceticism meant that he was succeeded by his brother and his family, who proved to be ineffective rulers.

Unfortunately for Jones the medical establishment of Edwardian Britain was resolutely antagonistic to Freudian theory and in this context Jones ’ s early attempts to employ psychoanalytic insights in his clinical and research work proved less than circumspect.

Unfortunately, the show's stability proved to be its undoing, as the producers did not see fit to add younger panelists while the regulars aged and the audience demographics became less desirable.

Unfortunately, his metabolism proved to be unique, so everyone else at the gym simply gained weight.

Unfortunately, Rolls-Royce pushed the state-of-the-art too far, too quickly, in using carbon fiber in the engine's compressor blades, which proved vulnerable to damage from bird impact.

Unfortunately, Savery's device proved much less successful than had been hoped.

Unfortunately, Goodman proved to be mistaken about this.

Unfortunately, this also proved to be the company's virtual undoing, when Microsoft failed to renew its contract.

Unfortunately the dam proved unequal to the spring floods and for three successive years it was washed out.

Unfortunately, the glass-smooth and shallowly-curved plastic handset proved difficult to retain between cheek and shoulder for hands-free communication without slipping, and this problem was never corrected over the life of the phone.

Unfortunately this proved a step too far with relegation in 2009 / 10.

Unfortunately, the forecast proved accurate ; despite the parade's good luck for 51 years, it rained continuously and heavily throughout the entire 2006 parade.

Unfortunately, this system of appointing ministers to oversee the government during an Emperor's minority proved not to be a very stable political device after all.

Unfortunately, from about 1930 onwards under Severi's leadership the standards of accuracy declined further, to the point where some of the claimed results were not just inadequately proved, but were hopelessly wrong.

Unfortunately, the E60s proved unable to safely achieve speeds over 90 MPH leaving Amtrak without a practical replacement for the GG1.

Unfortunately for the Germans, the British colonisation of Rhodesia ( Zimbabwe and Zambia ) stopped them well upstream of Victoria Falls, which proved a considerable barrier to navigation on the Zambezi.

Unfortunately, flak jackets proved to be too bulky for wear within the confines of the RAF's standard bomber aircraft, the Avro Lancaster.

Unfortunately, GM's timing with this latest downsizing proved to be off the mark.

Unfortunately, their design specs proved to be a little too accurate to the creatures they were modeled on, as their primitive brains went out of control, and Grimlock almost destroyed Teletraan I, before the trio was stopped.

Unfortunately, the missile's 3, 800 lb ( 1720 kg ) weight proved to be too heavy for the Gannet, and would have required modifications to the Gannet's bomb bay to expose the missiles ' seeker heads to the target before launch.

Unfortunately, this system proved cumbersome and Raven Software did not develop this particular system further.