I recently purchased a Visontek GF4 440 video card. Well the first thing I noticed is that this card has a heatsink but no fan. I thought "Well they must know what they are doing", but I seem to be wrong. First let me say that I play a lot of Everquest so my card gets a workout and after about 2 hours of play I get lockups. Let me also say that my case runs cool. When I built this machine my big concern was for heat so I have it running cool. So my question is.... Has anyone else had this problem? How can I go about fixing this? Also, my buddy bought a GF4 440 by another company....it had a fan.