Have you looked at:

- the refresh on your monitor for the driver it is installed to use
- wether you have you got the correct monitor driver
- wether you have the correct colour management settings for the monitor?

It looks as if the colour range/palette depth is wrong. The ghosting might be refresh rate and monitor settings.

I agree though, it looks like a pile of poo. Which drivers have you got installed for the card? Maybe the settings are way off - can you reset to standard/run an optimiser?

Get hold of the GL XS demo/graphics test benchmark and try that out.