I have a Dell Dimension8200, P4 2.56Ghz,2GbRDRAM with a Leadtek WinFast A310 Ultra TD MyVIVO videocard (GeForceFX 5600 Ultra chipset,BIOS version 126.96.36.199.00, 128MB DDR). The PC has WinXp Pro SP1, all updates current and DirectX9.0b. I also have a Viewsonic VP230mb LCD flat panel connected via DVI (it also has analog input) with a 1600x1200 max resolution at 60Hz (I have the latest Viewsonic driver installed) I was using the NVIDIA Official Nvidia Detonator FX Driver v44.03 May14,2003 WHQL Certified and the screen was perfectly centered. When I upgraded to the latest driver (Nvidia Detonator FX driver v45.23 Aug13,2003 WHQL Certified) th screen on the monitor was not horizontally centered (slightly shifted to the left). I tried the following steps to try to solve the issue without success: (1) Try the buttons of the monitor to manually adjust the position of the screen, but in DVI mode it won't let me, it will display "Not implemented for digital Input" (2) Play around with the Nvidia driver software and see if there's an option to adjust the position of the screen but there's nothing. (3) Switch to analog, adjust the position via the monitor buttons and then revert to DVI, but no change. (by the way, in Analog mode the screen IS centered). (4) I also tried changing the Nvidia drivers with all possible versions (both official and beta) released between v44.03 and the latest one (v45.23) but none of them work, they all produce a horizontally off-center screen. So the conclusion is so far that with v44.03 of the Detonator driver the screen is centered. Yet I would like to be able to use the latest Nvidia driver (v45.23) as it solves various other issues in games specially. Anyone can help me with this? THANKS!!!!!