We had a nasty virus that infected our server and 5 out of six workstations. The virus would crash the workstations every so often, and cause strange problems in general. The kicker was it it somehow hid from virus protection software. It got right past Norton and Innoculate (both updated automatically). We downloaded a trial version of PCcillin, and that didn't fix it either. PCcillin had a listing of viruses though and downloadable files that would fix them. Man, was that a long night. My business is completely paralized without computers, so I wasn't going home until they were fixed for next day's business. It took one computer genius, myself, and a helper untill 3:30 A.M. to fix it. I got home about 4:00 took a nap and came back in at 8:00 A.M. It's times like those that make me miss my old 9 to 5 job. Anyway, that's a long way of telling you that PCcillin has a free downloadable trial version of their software. Also there are many free trial ones at download.com