Guild Wars 2

Hi,
Over the past few weeks my graphics have been playing up occasionally, but in the last few days it has gotten really bad. My screen displays big patches of basic colours randomly changing – kind of flickering. Magenta boxes behind character names is a common one. Not quite sure if it’s my computer of the game! don’t have this problem with anything else though.

Would you mind posting your computers specs? Specifically the graphics card?

Sure, I know the graphics card isn’t great, but it’s soldered in :/
Graphics: NVIDIA GeForce 320M 256 MB
Memory: 8 GB 1067 MHz DDR3
Processor: 2.4 GHz Intel Core 2 Duo