Guild Wars 2

My game is having severe graphics glitch in which planes of intersecting colours jut across the screen the HUD and models are unaffected but become obscured by the planes here is a screen shot
http://i.imgur.com/4uZfhf7.jpg

What’s your hardware spec?

Time of this report: 7/26/2013, 20:35:07
Machine name: AMPERSAND
Operating System: Windows Vista™ Home Premium (6.0, Build 6001) Service Pack 1 (6001.vistasp1_gdr.101014-0432)
Language: English (Regional Setting: English)
System Manufacturer: TOSHIBA
System Model: Satellite L550
BIOS: Ver 1.00PARTTBLD
Processor: Intel® Core™2 Duo CPU T6500 @ 2.10GHz (2 CPUs), ~2.1GHz
Memory: 3036MB RAM
Page File: 2153MB used, 4120MB available
Windows Dir: C:\Windows
DirectX Version: DirectX 10
DX Setup Parameters: Not found
DxDiag Version: 6.00.6001.18000 32bit Unicode
Card name: ATI Mobility Radeon HD 4500 Series
Manufacturer: ATI Technologies Inc.
Chip type: ATI Radeon Graphics Processor (0×9553)
DAC type: Internal DAC
Device Key: Enum\PCI\VEN_1002&DEV_9553&SUBSYS_FFA01179&REV_00
Display Memory: 1769 MB
Dedicated Memory: 507 MB
Shared Memory: 1262 MB

i think thats all the relevant stuff from dxdiag if there is an easier way give me a heads up

When did this problem start occurring?

this morning but there was a similar problem on the launcher for about a week before hand.

toastedobelus.4872:

this morning but there was a similar problem on the launcher for about a week before hand.

Have you made sure your graphics drivers are up to date recently? Might want to do that:
http://support.amd.com/us/gpudownload/windows/legacy/Pages/legacy-radeonaiw-vista32.aspx