I'm having trouble playing first person shooter games such as Medal of Honour. When I move the mouse the picture struggles to keep up with the movement as if there is some sort of lag. This gets worse in parts when there is a lot of action on screen the picture freezes for up to a second allowing me to get my butt killed. My PC is a packard bell i-extreme which has the following. Pentium 4, 2.00GHz 256 MB of RAM nVIDIA GeForce2 MX/MX400 with 64MB on board memory I hope this is enough info. I know virtually nothing about PC's so any ideas would be greatly apprieciated.