Weird 'invisible' shades that won't disappear

[Archonaut]

Well like the title says I have no idea why this is happening but RO is acting really weird. I got my laptop back a few days ago, installed RO again but this time I have these really weird and annoying graphical errors.
I hope this is a common problem, also hoping someone might now what I should do. Screenshots in the attachements.

O4: Windows 7 64bit
CPU: AMD Athlon II Dual-core M300 2.00GHZ
GPU: Ati Mobility Radeon HD 2500/5100 Series - 512mb
RAM Memory: 4GB

Yes I have updated my GPU driver so I don't think that's the problem.
Also I tried experimental client, and just the normal one.

Again, I really hope someone can help me with this.

Best regards,
Archo.