Everybody has been praising Windows 7. It's supposed to make us all forget about how bad Windows Vista is and make us fall in love with Microsoft all over again. But before you throw your Vista laptop out the window, remember that the much-maligned operating system also got great reviews before its release. It wasn't until later that problems began to creep in and hating Vista became the new black. Those who wrote the positive reviews of Vista have nothing else to do but put their tails between their legs and admit they were wrong. "If I could go back and do it over, I would be more negative," said the Businessweek reviewer who called Vista "a big step forward."