:@ My system crashed & I subsequently had to replace the hard drive. I used to have Outlook 2000. The tech guy installed Outlook 2002 when he loaded everything again. I couldn't open any regular attachments (like jokes from my friends). Okay, so after searching all over the web for a solution & finding none, I decided to uninstall Outlook '02 and reinstall Outlook '00. Guess what? The same problem! I have tried everything under the sun (checking the Registry - nothing wrong there; checking my security settings, etc.) and I still can't figure out what the problem could be. Before my hard disk failed I had no problems opening attachments. I have signed on to every tech forum imaginable and nobody seems to be able to help me. Any suggestions? Thanks!