I'm using SW2009 SP4.0, core2 email@example.comGHz, 3.25GB RAM, XP SP3.
When I move my mouse over open windows screen or another app, like Google Chrome, the CPU is 2-3%. When I move the mouse over SW it is up to 50-60%. Also, I get a warning that I am low on system resources and I should close applications and restart SW. This is with a small assembly, ~20 parts. I used to load assemblies with hundreds of parts in 2008 without this problem. Is 2009 a resource hog? I rebooted and I still have the same problem. My colleague is having the same problems.