OK. I fixed the problem. I just followed these instructions:
Right click on My Computer -> Properties->Advanced->Environment Variables->System variables and locate PATH. Add ;C:\windows\system32 at the end if it is not present
I thought "%SystemRoot%" would be the same as "c:\windows," but I guess not. I think the software I installed for the American Express Blue smart card reader f***ed w/ the Path. If you look at the path, some American Express Blue thing was added to the end. Oh well.. It's fixed now, so it's all good.