BSOD + minidump

I've got a computer that's been getting a tcpip.sys BSOD lately. I've tried looking at the dump file with BlueScreenViewer, but I haven't been able to gleam any information. I figure it's time to ask someone who actually knows what they're doing for help. This is an xp machine, btw.

I do notice Symantec which is a frequent cause of BSOD's. I would remove and replace it with Microsoft Security Essentials AT LEAST TO TEST
http://us.norton.com/support/kb/web_...080710133834EN

http://www.microsoft.com/security_essentials/

Can you tell us which machine this is off? I'm seeing XP.

Can't quite remember off the top of my head. I know it's a Dell with XP, SP3 I think. It's got 3 network cards, 2 external USB hard drives, a USB over IP device, and i think an nvidia card. It does have Norton AV. The computer ran fine up until early October, when it started getting these BSODs.