Beware, don't download files that are less that 1,000 KB (1 MB) in size. Most are viruses or other trash. Have a look at
WARNING: Viruses on network you should be aware of! (click on link) as this problem has been listed before. I'd highly recommend you register at Norbie's site & follow his instructions & he will help you solve this issue;
NorbiesWorld (click on link)