Hi, I'm currently using Windows 7 RC build 7100 64 bit. My PC setup is HD4850, E8400 on ASUS P5Q SE Plus. 4GB Ram I am having problems with typing in Windows Live Messager and Chrome. Both softwares works fine at bootup. However, after a while i will experience lag in openning up chat windows or even typing in textbox in both Chrome and MSN. All these while just surfing net and using microsoft office with Outlook.