I've been playing UT on my tnt2ultra fine for weeks. Now, I've got this mouse lag problem. It shows in the UT desktop and in the game. (single and multiplayer). The mouse pointer moves where you want it to, it just glides there slowly. The only things that changed were: swapped DIMMs (don't think this is it.); changed from 3.53 drivers to 3.68 (changed back with no effect); tried the new d3ddrv file (changed it back to with no effect.) I've tried to put the system back in the same condition it was in, but I can't fix it. The problem disappears if I go to a window and doesn't appear in other games like Q3. Maybe a D3D problem? Help!