How can I fix the video portion of my motherboard?

First thing is to reinstall your video drivers. You can download them from www.amd.com.
Drivers are ALWAYS free from the makers of the hardware.

If reinstalling the drivers don't correct the problem, there may be a problem with the onboard video circuitry or some faulty video component(s).
Some times, a thechnitian may be able to repair it, but, often, the only solution is to replace the whole motherboard. It may be cheaper that repairing.

If replacing the motherboard is not an option, your only option left is to install a proper video card and disable the onboard video from the BIOS.
Entry level video cards are usualy beter than integrated video with the added bonus that it no longer eat part of your main RAM and don't force your CPU to wait for the video part, giving you up to 30% overall performance boost.

If there are no available expention slot, you need to take off one extention card or replace the motherboard.
Motherboards with integrated video card functionality often don't have any dedicated video slot like PCIe or the obsolete AGP. In this case, you need a PCI video card.

Electro
November 2014

How do you know Bertie? Have you tried a new device driver?

As for finding somebody to repair it much will depend on where you live - Yellow Pages might be your best bet.

Good luck...
November 2014