I am using vista home edition with 2G ram. From time to time after I work with my laptop for a period of time, I can not open any of programs, even my computer. Damn, is it really my computer? QQ throws me a out of memory message window, Sometime a new window is opened with the frame only, no button, no menu... weird. Actually, the time period is not fixed. I thought it was relevant to how many application I was