Monitor gap after installing drivers! Help

[pipson]

I just got my pc today, installed windows 8 and there was no gap however i dont remmber which one trigged the gap in my monitor whether it was my motherboard CD or my GPU drivers. -> screenshot see the arrows ? thats the gap

There was no gap before installing either drivers:
Specs:
vtx3d 7870 LE Black edition
Motherboard: M5A99X EVO R2.0
Monitor: Benq GL2450
Can anyone Help?

 

[pipson]

tried opening catalyst control centre, select 'digital flat panels' and then scaling options and make sure underscan-overscan is set to 0% or play with it till image fills screen?

edit: yup, what he said^^

This fixed it, thank you very much, whats the point of it doing that in the 1st place?

 

[pipson]

quick question aswell when i go to device manager and under display adapters it says AMD radeon HD 7800 series is this correct? I thought it would be a bit more specific ? like AMD HD 7870 ? maybe VTX3D 7870 ?