I am using Nod32 V 3 on my Dell Dimension computer with xp pro and on my wife's Dell Dimension computer with xp home. So far I have only good experiences. I had a question about setting up the scan on MSN and Gan was good enough to give me the answer. The only other problem that I have experienced is that emails add the tag (scanned by Nod32) only on incoming emails and not on sent emails. I have been a Nod32 user for the last several years, and it look like I will continue to be one. I actually find that with Nod32 v. 3 both my computers seems to run faster and web pages load faster. Of course the proof of the pudding will be if I get a virus (but that doesn't happen very often).