The Gnutella Network is Loaded with Fake and Corrupt Files, Viruses, and Worms. You may be experiancing some of said files.
I would suggest you use
Bitzi, Instructions below, and a few other Links that may be of interest.
After you have completed your search, Right click on the file that you're interested in. Now go to Advanced > Lookup File With
Bitzi. Left click on that and a new browser window will open which is
Bitzi. Now you will see how other members have rated this file. If you see something like "Bitprint not found" then Leave it alone. Its probably a Fake or
Corrupt File. If it has been Rated then you can read what or how the members feel about the file.
Make sure You Scan EVERY File with your AV Program Before Opening.
* WARNING: Viruses on network you should be aware of ! * Movie download issues (click on blue link).