when i added an nvidia card to my ati card to handle physx my mouse cursor would go off the right side of the screen. this became annoying so i looked for this mouse cursor fix. the containforum video is helpful but it was like watching a magic trick, it happened too fast. i needed to read the steps.
I got this fix from watching a containforum youtube video
1. right click desktop/screen resolution/multiple displays - display 1 - show desktop only on 1.
2. windows control panel/nvidia control pantel/disable physx then enable physx.
3. open fluidmark and default benchamrk click go. fluidmark will auto-extend displays.
4. right click desktop/screen resolution/multiple displays - display 1 - show desktop only on 1.