This is in a dell tower with an NVIDIA Geforce MX 420 video card. The slider is available with multiple resolutions, but if you choose any and hit 'apply', it just stays at 640x480. Specifically, the window comes up and asks if I want to keep the changes but it hasn't actually changed. the slider then goes back to 640x480.
I have tried rolling back the driver, uninstalling and reinstalling it, using Windows update, and getting the latest from NVIDIA's site. The drivers all have the same issue.
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Run 3 top tools and then reinstall graphic drivers 1.MALAWAREBYTES 2.COMBOFIX 3.TROJAN REMOVER these are free tools and will fix any issues that you suspect at this point of time(infections) Kindly rate this solution Thanks And Regards
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this is the most up to date driver they have available for your graphics card at the moment via geforce if for some reason this does not solve your problem it may be as simple as making sure the resolution you have it config for is available on your monitors spec a good idea would be to google prime res settings for your monitor and finding what is suggested if its a more recent problem though hopefully the drivers will fix it for you
if this is a relacement for an old card 1st make sure the old drivers are ubisnatlled and the goto www.nvidia.co.uk and install the latest wqhl drivers and that should remidy it you may also need to reset you monitor settings
It probably a mismatch between resolution, colour depth and refresh rates. Before you disconnect the CRT change the resolution to 640x480 and 16 colours with a 60Hz refresh. Then connect the LCD and adjust the settings