I have used many many AV/AS products in my time on the computer, I won't settle on one unless I've checked AV-Comparitves, AV-Test, and the VB100 to ensure their scanning abilities and tested Free Trials on my own. I've used AV's from Panda, Kaspersky, Avira, Avast, Microsoft, G-Data, Bitdefender, Threatfire (Still in use, but I'm not sure if I'll remain using it), DefenseWall HIPS (I can no longer use because I switched to 64bit windows pheh), ect.
However, I remember way back when (Quite a few years ago) when I last tried a Symantec product. It came pre-installed on my machine and was so terrible that removing it was the first thing I did upon setup. I ended up buying a new windows XP disc to get one without the junk from Symantec. However, as I've been looking through the Comparitives I noticed NIS/NAV 2011 did astoundingly well. I am presently using Avira's latest Premium suite (I've been using Avira for over a year and a half now) but they continue to fail at resolving the problems that plague me. Therefore, I'm considering switching to Norton. Essentially I'd like to know what problems (If any) you are experiencing. I also would like to know if there's a free trial available with these products that does NOT demand my billing/credit card information before I even accept the product as I'd much rather try the product and whipe windows again than end up with an unstable product.
Edit: Some of my setup information.
CPU: Core i7 920 @ 4.3Ghz
GFX: ATI Radeon 5870
RAM: 6 GBs DDR3 2200Mhz
OS: Windows 7 Ultimate x64
You may begin.