Cleaning your graphics card

Hi all,
I was wondering what you guys would recommend I do to clean the fan in my graphics card? I have tried using a thin cloth and poking it through the fan blades to get to the dust below, but surely there's a more effective way? The reason I ask is that I believe the dust is causing my graphics card to overheat which in turn causes the PC to reboot if I am playing a relatively resource hungry game such as Oblivion.
Thanks in advance for your thoughts and suggestions.

Compressed air works wonders :smile2:

Yeah, you can try compressed air. If not just does it the old way, using cotton buds to wipe the dust out.

Great suggestions, thank you both.

If you want it to shine like theres no tomorrow, you could try some isopropyl alcohol with the cotton buds. Just make sure its completely dry before plugging it back in