I had Vista retail, more like OEM, from day one when it was available when I bought my laptop & had no issues. I just got 7 yesterday & so far I dislike the way the task bar operates & how it is laid out, i.e., how now the icon open when you click them, how the desktop icon is all the way over to the far right & how when when you open a screen within a screen it it not maximized. I dislike the lack of option on start/left mouse click. I dislike the way explorer now works as in it now gives you a multitude of things to open, not just the drive like before & I see no way to change that. Most of the Vista wallpapers which were cool are not there. 7 tells me I have a bad battery when Vista didn't, but I know its not true as my battery works great & it seems to actually take longer to boot & shut down. And that's just what I've seen in not even 24 hours. I hope it's all configurable & I've just not found how to do it yet.