The XP setup is pretty much the basic configuration being XPSP2 with 1 CPU and 1GB memory. I am using BusLogic driver but from what i read it shouldnt have any side effects. The main problem I have is that when any of these apps are running you get that screen hopping effect when you try scrolling/zooming where the image hops across the screen rather than simply moving as it should. also there is a slight latency in responsiveness of the app. Can you explain your setup a little?