This is starting to drive me nuts, I noticed this in the Windows 7 RC, and it still happens in Windows 7 OEM version for me (different motherboard IIRC), I am curious as to whether it happens to anyone else. When I return to my PC after leaving it idle, I go to it, press Ctrl-Alt-Del, type in my password and get in. This works about half the time. The other half, I find myself picking up the mouse after entering Ctrl-Alt-Del because the Password field is not selected, selecting the field with the mouse and then putting it in. I know I can Tab but why should I have to. Could this be a software/driver conflict?