I was writing an email to my friend, and got an incredibly wrong grammar correction. So I typed it into a new email to take a screen shot (without the rest of the personal stuff), accidentally left out some words, and got this lovely suggestion. If you can’t see it in the screenshot, it says that “you is welcome” and “you’re welcomes” are the correct ways to say that phrase. You can’t make this stuff up!I’m running Windows Vista, and my language is set to Canadian English. I used to flip between U.S. and Canadian English all the time in XP and never came across this bug. I guess Vista left out a rule or two in the grammar check.