Can you post a link to the previous discussion you mentioned, so we don't have to go searching for it? Aside from the problems you're having when using OE, I have the impression your computer is still not working right.
And, I think you're going to have to resolve an issue of ownership concerning a Windows CD. If your ex is using that CD for his computer, one of you is probably going to have problems in the future getting Windows updates because one of you is in violation of the software license agreement. In other words, you can't legally install Windows on multiple computers and the activation/validation procedures will, at some point in time, flag one of the systems as being illegal. One of the recent Windows updates was a validation tool that verifies whether you have a legal installation of Windows. If the Windows CD was originally installed on your computer, then you ex should be the one that encounters a problem. You might point this out to him and try to get the CD back.