Artifacts when mousing over UI elements - Windows 8

Above is a screenshot of what i’m talking about.

Anyone come across this before?

System

acer aspire 5560
AMD A6-2430M APU with Radeon HD Graphics
AMD Radeon HD 6520G
1366 x 768

Update graphic card drivers
File / User Preferences / System - Try the different window draw options

Updating my drivers fixed it, thanks!