I wonder if you guys can help me? I've used this site before and you've really helped me out. Now my mother-in-law's PC is messing up and I suggested she join this site to get some help... so here's hoping!
The computer is running winXP (service pack 3) but has been behaving very erratically of late. We lost internet connection last week but I managed to restore it; since then, however, her system has been running *very* slowly: internet pages take ages to open and programs take ages to start. I've ran all the checks you suggest in your Malware removal guide and there don't seem to be any problems but the PC is still very sluggish and hangs constantly. (I'm currently in 'Safe mode with networking' jut to be able to write this!)
Below are the two OTL log files you suggested I post. (I've also included them as attachments.) I really hope you guys/gals can help us with this, so thanks in advance!