System Extremely Slow

I am not very much of a hardware techie as far as computersgo. I have been using solidworks consistently since 2004,. I am nowrunning 2007 SP 1.1.

My assemblies are usually in the 15 -30 MB size with the supportingfiles adding up to a few GB. Some parts are pretty complex, withmultiple helical features, and sometimes some organic shapes aswell.

I sometimes see assemblies that take upward of 30 minutes to load.When I view the task manager- performance window. It shows that Ihave 8 GB RAM with close to 7 GB available. The window shows 8CPU's, rarely with much over 15-20% usage, one cpu may be hoveringat or around 85-90% for a while then that usage will switch to adifferent CPU. Rarely is more than 2 of the CPU's showing more than50% usage at one time. Is this normal?

Any help would be greatly appreciated. I am trying to get themanagement here interested in more seats of SW, but that isdifficult when I am having so much trouble with what I wouldconsider a pretty robust system.SolidworksAdministration