I'm concerned that some of the stuff you guys are suggesting -- much appreciated, of course -- may be beyond my level of computer expertise.
Well the rescue cd, is fairly straight forward. You simply download the file,then double click on it.You will then be prompted to insert a blank cd, the program is then automatically burnt onto the cd.
Then insert the cd into the infected machine, and reboot. Most pc's are set to boot from cd first.
Then from the on screen options, choose 1 ( boot from rescue system ) then enter.
The menu then appears, click on the english flag ( for english )
Then click on configuration, and choose, scan all files, try to repair, rename if repair is not possible.
Tick the boxes for diallers,spyware etc
Then click on virus scanner, and start scanner.
All instructions were in the link.
At the end of the scan, write down anything found and report back