Hello,I’m using Autocad 2010 with a large 3D render project. I’m surprised to notice that when I slide my rendered draw, the video card doesn’t seem to work properly as the movement is not smooth. However, my pc configuration seems to be optimal. Any ideas on how to fix this or where the problem might come from?My configuration:Power supplier: Marca Satelite de 600 W.Motherboard: Gigabyte X58A-UD3R, chipset Intel X58.Procesor: Intel Core I7- 920 LGA 1366.Video card: ATI Radeon HD5670. 1 GB. GDDR5.Hard disk: 1 TB. SATA 7200 rpm.Regards,Daniel

How large is drawing file size?

Movement not smooth? you trying to make a video? I would say thats pretty normal (as in not a problem to worry about), to digitize a large image like a render when you move it...

The drawings have around 20 MB.A college of mine works with a file having 70 MB
 (with an Intel I5 / Nvidia 9800) and when he moves the entirely draw it goes really fast.

No, I'm not trying to make a video, I just want to slide the entirely rendered draw but it goes really slow when it gets around 20Mb. With the same draw, I saw PCs performing really better and their configuration (video card/processor) are not as good as mine. There must be something wrong with the video card? The NVIDIA's video card driver has been updated but it works like I had a 90's VGA card...