I´m not sure if the problem is win7 but just my computer, I have installed it in win2008 and no problems. I´m using the latest drivers and tried disabling desktop composition/themes/uac/dep/etc but no luck with that.
The background is not grey with the grid, it’s just white. Also the arrows in the top-right, and in the selected object are all white. Is this some config in my computer or is actually a bug? (I’m planning on migrating all computers to win7 so it is kinda important)
I have the exact same problem. Strangest thing, before installing Unity 2.6, I had 2.5 running under Windows 7 for months, no problems. Now I thought I take a look at the new features in the 2.6 Trial and after my Trial period was over, I installed 2.5 again. Now I got the same problem shown above, the editor window and the arrows lost their colors. I guess this can just be a problem with the editor preferences, as Unity seems to put editor files all over the place, I thought I found most of them but obviously not, because it also remembers the location of all my other projects in the “open project” window.