When cmd auto closes upon opening, it indicates that you probably have the Brontok virus. I think you have to go to technical support and post your HijackThis log.

EDIT:
No need to panic...its just my two cents and just an assumption. If you cannot open the Registry Editor...or you cannot see Folder options in Control Panel, it would probably be the brontok virus.

This post has been edited by yjwong: Jun 19 2006, 12:38 PM