This has been bothering for a while, The workspace (not including menu tabs and windows) flickers as i move the cursor and paint over it. As shown in the attached image My Spec is Windows 8.1 64 Bits
Screen Res, 1366x768
I5-3230M 2.60GHz
Nvidia Geforce 705M
10GB RAM
Though i cant update to 4.0 and im still using v3.5