I'm running Windows 7 64 bit on an ASUS 501j laptop with an intel pentium dual core processor. I bought the laptop just over a week ago, and it had a clean install of Windows 7. Every now and then (I haven't worked out a pattern yet), my background will disappear and be replaced with a generic white ASUS background. Under the personalize section of the control panel, it says it's running a new Unsaved Theme instead of my saved theme that I had it set to. My laptop mouse has been randomly disabled twice. Also, I despise the AutoHide function of the taskbar, so I always turn it off. But (again, seemingly randomly) the taskbar switches to AutoHide, with the button clicked. The only time I noticed a distinct cause-effect for one of these problems was once when I was rebooting. The background was there, but the taskbar was gone. The only thing I did after logging in was to change the taskbar settings to unclick the AutoHide box. The background disappeared. I'm running security software, and my last scan was clean, so I don't think it's a virus. Does anyone have any idea what's the problem here? Thanks.