Originally posted by leif3d looks like a ram bottleneck or HD bottleneck...if you have huge image planes specially with modified alpha gains it will suck your system lifeless....give some specs of your system to figure it out Dual AMD Opterons 244s (1.8GHz) 200GB HDD + 80 GB + 36GB Raptor 1GB DDR Registered PC2700 um... and a crappy GeForce 3 ti500 :o I've never had this happen to me before so I dont know why it's doin that.. the image planes are not that big actually.. the reference pictures are 200 to 300 pixels so that's not really big... -Emo