I wanted to change my email default so I was told to go to Options>> Applications. When I opened the tab for Applications, the whole white window was empty. For the last 3 days, the computer has been messing up normally reliable commands. For example, numerous times I've clicked on things I use all the time and a window from Internet Explorer would open in a new window (never tab). Then it would just sit for hours loading and never once complete. Incidentally, the name that showed wasn't simply explorer, it had other parts too.