Yeah, that sounds messed up.
Are you %100 sure its not the other way round...?
When you're viewing your C drive's space (With the pie chart), press the PrtSc button on your keyboard to take a picture of your screen.
Go into Paint and press "ctrl+v" to paste.
then display the picture in this thread =]
download AVG Anti-virus
Run that instead of Norton...It's free.
It should ask you to download some updates, but eh' download them =]
Somehow, people rate it higher than Nortron, although it's free :| ^_^
By the Casino things, did you mean there were ad's inside of Search' and Destroy, or that it found spyware called Casino?