AMD 2100+ chip. 4 slots on the Abit AT7-Max2 mbo and guide says 2gb max is ok. 1GB of 2100 (2 512s) or 2700 (2 512s) memory work fine. However, when I add 2 more 512s of 2700 to get to 2gb, I start getting failures of IE. I've tried different makers and all have similar results. Any thoughts?