I am working on a Dell Dimension 4300 that came loaded with Me. Recently I upgraded from Me to XP Home version. However, I have had to uninstall and revert back to Me in order to at least be able get online. As soon as I upgraded I started to receive an error message that reads - One of the library files needed to run this application cannot be found UNICOWS.DLL. After doing some research I came to realize that i must have contracted the virus when I first upgraded to XP since it does not effect Me. Even though I reverted back to Me I still get the error message. I have since cleaned up all viruses with Norton Antivirus and deleted. The error message seems to affect when I login to the internet. Online tech support at MSN said the problem would be cleared up by simply reinstalling from MSN 9 from my cd. This has not helped. Any suggestions? I am about ready to try reinstalling Me from my reinstallation cd provided from Dell. But wonder if this will help or is the best thing to try next. Help