For some reason my unity has some graphic errors.. the best way to explain is with pictures

64 bit 12.04.1
ATI 6950 graphics /w propriety drivers
gigabyte ud4 motherboard with p67 chipset

there are grey boarders with white dots around unity GUI and the launcher background is black instead of transparent.

Makes me think some drivers or something aren't being used correctly. Does anyone have any idea what it could be or how to fix??