Randomly, nothing opens on my computer. Except for certain things. For example, I have a folder on my desktop with links that I go on a lot, and if I open them on there my Mozilla will open. However, if I try to open mozilla from the start menu, it doesn't respond. Same goes for everything on my computer. No icons load on the taskbar either. I restarted several times and I am still having problems. What is going on?