I have windows 8. Have a 19" sansui sled1949 widescreen tv/monitor I want to use. I plug it in with a dvi cable and change it to pc and it SAYS "not supported" on the screen. I can't change my resolution higher than 1280x1024, anyone know how I could change the resolution higher than that? The current monitor I have is recommended at 1280x1024.Have you tried Windows 8.1 update?

If I download 8.1 what will it change regarding ze problem?
In windows 8.1 you can get the device manager to find an update or suitable driver for that monitor.  It may be that Windows 8.0 is not WELL supported and  new drivers s are made for Windows 8.1 from now on.  Not verified.

http://pcsupport.about.com/od/windows-8/tp/windows-8-drivers.htm
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Important: For most hardware, a driver update is not required just because you've updated to Windows 8.1 or Windows 8.1 Update. I still recommend installing the most recent Windows 8 driver for your hardware but don't worry if it doesn't specifically say it's a Windows 8.1 driver.

That TV is only 720p which would equate to 1280x720 - You're going to have issues if you are feeding it resolutions higher than that.