Hi nettle and welcome to TSF.
We will need a HJT log from the infected computer. The programs we advize you to run are also to be downloaded and run on the infected computer.
Please download
HijackThis - this program will help us determine if there are any spyware/malware on your computer. Create a folder at C:\HJT and move HijackThis.exe there. Double click on the program to run it.
1. If it gives you an intro screen, just choose 'Do a system scan and save a logfile'.
2. If you don't get the intro screen, just hit Scan and then click on Save log.
3. Get
HijackThis Analyzer and save it to the same folder as the hijackthis.log file. Run HijackThis Analyzer and type in
y if you agree. The
result.txt file will open up in Notepad. Copy the whole result.txt log and post it in the forum. We do not need the original hijackthis.log (unless we ask for it). Do not fix anything in HijackThis since they may be harmless.
If you have a fast internet connection (broadband), run an online virus scan at
TrendMicro. Just follow the instructions on the site to run the online scan. Otherwise, make sure your antivirus program has the latest definitions and run a full system scan.