Bests & Worsts Reviews from Amazon

I just purchased Norton AV 2005 for my Dell Dimension 8250 computer (approx. 1 year old) because my previous Norton Antivirus subsciption had expired and it was cheaper to buy this version than renew the license. What a mistake. I installed the program which seemed to go smoothly until I ran liveupdate to get the new virus definitions. The definitions appeared to download fine, but then they "failed authentication" and the program would not install them. I clicked on the link next to the error message and the Symantec website recognized the problem, but said it was either a problem with my computer or a worm or trojan causing the problem. I don't have any computer problems that I know of and the program didn't tell me what the problem was and I had been running NAV before with no problems and had purchased this after my virus deinfions were only ten days old. It seems a little too convenient that this is a problem with my computer! The Symantec link also gave me a great link to a self diagnostic tool that told me I needed to update my virus definitions -- as if I didn't know that already. I read a host of negative reviews of Norton AV 2004 but still went ahead and purchased NAV 2005 because I had used NAV in the past without any major problems. It looks like the software just keeps getting worse with every version. Don't make the same mistake I did.