windows 7 flickity graphics

hi not sure if this belongs here but oh well.
i upgraded to windows 7 recently, before that i was stuck with vista.
when i had vista the FPS was lower than it seems now with W7 (might just be server performance) but now when i open the map the screen will somtimes flicker between the map and the UI. i turned on 60Hz refresh rate (dont know why) and that seemed to do something but then the problem just came back. i'm using a rubbish old integrated graphics card but everything else on GW works fine, if not better than with vista. does anyone ahve any idea whats causing this?

Are you using the fancy effects on W7? Or just the plain Windows 98 style?

Are your BIOS/(Intel?) Integrated card driver's up-to-date? You can check at your computer maker's website.

you mean widnows aero? yep been using that with vista too and no problems.
i'll try updating ym graphics card drivers when i get back to the PC thoguh the last time i tried it said i was up to date.
sorry don't have much info about the system on me atm since 'm using another PC

i updated my graphics card with a windows 7 driver, but that didn't solve the problem. it stopped flicking for a while then started again, i tried using best filtering tecniques, changing my shadow and shader to high and bnack again, they all worked for a few minutes then the flickering came back after a while. it mostly seems to happen in busy towns.
anyone have any ideas?