XTRAP Error "Abormal memory usage"

I keep getting a really weird XTRAP error every few minutes in Crossfire. (Weird...it's only started happening today.) It says CODE FIELD: 30-0400-00000000-514 The game execute file is not normal or an abnormal memory access has been detected.


Here's some info you may or may not need: *I have Windows 7
*Norton Antivirus
*I get typically more than 120 FPS and 44 ping. (I've been told i'm getting this error due to lag...but i don't lag.)