I'm running Window 7, build 7600 I believe. Here are my problems: 1.) Recently I've been having this problem where explorer doesn't refresh--sometimes. For example, when I delete or move an item, it doesn't change on the screen until I manually refresh with F5. Sometimes this happens, sometimes it doesnt. 2.) Sometimes it hangs when I shut down or log off. Sometimes it doesn't. 3.) There's a certain program I use. Sometimes it crashes, sometimes it doesn't. 4.) This shortcut to an application I have installed keeps returning, no matter how many times I delete it. It's not a virus; I've used it many times in the past (in fact it's software that came with my laptop). I am at my wit's end...I love Windows 7 but I'm starting to regret installing it. Please, help me.