I think I got a jpeg "infection". I understand that's improbable, and at http://antivirus.about.com/od/virusdescriptions/a/perrun.htm I read that the way it could work, is an already infected machine would extract viral code from the jpeg. But it all started with some jpegs in the body of an email (I opened with Eudora [the no-longer supported 18.104.22.168]). Eudora ground to a halt. Even after I restored a backup image of the OS, if I put the "infected" Eudora back in and ran it, Eudora was still hosed even though I never opened that message again. So I've abandoned hope of (and much interest in) saving the 12 hours of emails I got/sent since the restored backup. And I've implemented the (few) precautions (I hadn't already taken) at http://antivirus.about.com/library/bleudora.htm I'm wondering what else I should do to keep this from recurring. For now I've asked the Sender (my sister, via Apple Mail) to please not send me images in email body text. The value in HKEY_LOCAL_MACHINE\Software\Classes\jpegfile\shell\open\command (mentioned on http://antivirus.about.com/od/virusdescriptions/a/perrun.htm ) is identical on all 3 of my (Windows XP Pro xp3, fully patched) computers: rundll32.exe C:\WINDOWS\system32\shimgvw.dll,ImageView_Fullscreen %1 That file shimgvw.dll also has the same Modified Date (4/14/2008 6:42am) on all three machines. I wondered if an SFC /scannow would make sure that file was good, but the c:/I386 folder I copied from my Windows install CD doesn't have that dll in it. All three machines continue to scan clean with current definitions for: NOD32 4.0.314.0 Spyware Doctor Spybot Malwarebytes' Antimalware Ad-Aware Free SpywareBlaster Thank you in advance!!