In Sketchup 6 Pro (and ACAD 2007):
My issue is with exporting .dwg's. I can do it, I know how, and I tested a fresh file with default style, no layers, and a simple block configuration. It exported elev.s in seconds, and also sections from that test model. My real model has about 40 layers, is mildly complex, can export .png, jpeg, and sometimes PDF, but I have only gotten a couple of random sections and plans to export. It is not consistent. I can't tell what's wrong with my model. Something is crashing the process when I try to export .dwg or dxf extensions. The file goes to NOT RESPONDING and then I have to close and restart.
The section planes issue is that instead of nicely fitting around my model, the gray screen of the plane stretches about 10x past my model, making it impossible to move in and create a nicely chosen section.
If you can help, that'd be great. Much appreciation from Hollywood