Hello Evelyn Seim (and eventually LPate),
No outright infection showing here. You mention slow email, and this log show that Incredimail software installed, as well as an unusual Yahoo mail active desktop image. And I believe AVG scans all mail if set for that. So some email related info in just this one view. Let's get more details though and check further.
To keep them from interfering with the repairs, be sure to temporarily disable all antivirus/anti-spyware softwares while these steps are being completed. This can usually be done through right clicking the software's Taskbar icons, or accessing each software through Start - Programs.
Download
RSIT (random's system information tool) from
here to your desktop, then click on the
RSIT.exe to start the scan.
If necessary allow it to locate or download a copy of HijackThis as needed.
Once the scan completes a textbox will open - copy/paste those contents here for review please. The log can also be found at C:\rsit\log.txt.
RSIT will also create a second log, info.txt, which will be minimized to your taskbar. Post that here as well please (it will also be stored at C:\rsit\info.txt).
You can break logs into parts and use separate posts here when replying and posting the log files, if needed.