Hi Guys,
The last time I had problems like yours my Graphics card gave up a short while later.
However, it could just be a bad connection. Switch your PC off and remove your GFX card, check for any dirt and dust on the card and mother board especially on the contacts then refix the card and give it a try. Make sure the fan is still working.
You could also do this with your memory sticks.
If this doesn't make a difference try borrowing a friends card and see if there is any change.
Also check the temperatures of your card under working conditions as it may be overheating (dust can help to cause that). If it is getting to hot and all your fans are working try leaing the side off the PC tower.
Good luck chaps.
Gee-Deeman
