@hobbespdx said: @vik1786 said: can someone help me?? I installed a second video card, and now Sketchup consumes 1/2 of my quad-core CPU. My solution is to only use one video card during use of Sketchup. I found that if I reduce my desktop from 4 monitors to 2 (just one video card in use), then start Sketchup, it performs normally. Hope that helps. nVidia? I had a Geforce 6800 GT and I installed a Geforce 8800 GT and found that my OpenGL application all dropped performance. DirectX powered applications worked fine. Apparently it's a drive issue.