Does anybody know what the heck is going on and how to fix this weird problem?

I tried a new Restore Point, and was unsuccessful. I ended up restarting the computer, but now my Active Desktop has disappeared and when I try to click the button to restore it, Windows gives me a message about a script error and 'do I want to continue running scripts on this page?' I've clicked on both 'no' and 'yes' to no avail. Eventually, a message came up saying the program 'was locked by the computer', which I thought was very odd. Today, I thought I would check to see if there were any updates to the program - while checking, the program froze so I pressed Ctrl-Alt-Dele to close the program. Since that point, I've been scanning my computer regularly for viruses with no problems.

A while back, I had some problems with my computer and among several other programs I was instructed to download SuperAntiSpyWare. Hello there! I'm not sure where else to post this question, but if this post needs to be moved elsewhere, please do so.

Superantispyware download failed