I have a Mitsubishi DLP that only accepts DVI input for computer use - over HDMI, the input is blurred and strange looking.  I use a 7850 ATI with a i5-2500, latest ccc non-beta, Windows 8.  This has been an issue for a long time, but I don't recall having it on windows 7 prior to using the 7850 ATI card.  The I issue I have is that when using DVI, I have underscanning issues, and regardless of what GPU scaling settings I select, the image is either too large or too small.  If I was able to use the underscan/overscan settings with DVI output, it would be fine, but they are hidden when I am using a DVI cable.  When I use hdmi, they pop up and I can fix the issue, but then the image is blurred.  

I can sort of fix the issue by creating a custom resolution.  But this resolution does not carry over to anything running in full screen, and as a result, most games either have black bars, or are missing the sides of the screen, depending on the GPU scaling option I have set.

Is there any way to fix this?  Is there any way to force the overscan settings to show when using DVI instead of HDMI?  

I have overscan settings with DVI and have always had. I'd check the cable first, then the whole monitor with another computer.

CPU: AMD Phenom II X4 810 @ 3250MHz | RAM: Kingmax 2x2GB DDR2 800 @ 833MHz| MoBo: MSI K9A2 CF v1.0 (BIOS: 1.D)| GPU: Asus HD 6850 1024MB (DirectCu) @ 850/1100MHz | Display: Chili Green Vision L24FHD | PSU: PC Power & Cooling Silencer 750 Quad | OS: MS Windows 95 x64 Edition

CPU: Pentium 4 Northwood S478 @ 3200MHz | RAM: 1,5GB DDR 400| MoBo: Gigabyte GA-8S661FXMP-RZ | GPU: Abit Geforce Ti 4200 | Display: Dimarson 19" CRT | PSU: Noname 400W | OS: MS Windows XP Pro, Fedora 18

Works fine with the i5 onboard video.  Unfortunately, my other pci-e video card is also amd, same issue.   Cable swap- no luck.  The cable is DVI-D, TV won't take anything other than dvi-d and hdmi, and the hdmi issue is the fuzzyness.