Randy,
I've notice that after working on it for 4-5 hrs it stops formatting, JIT compiling, and error checking until I click on the design tab. So I go back and forth betweeen the two scrrens periodically to to format and check. Very annoying. Performance of the app is not slower, tho. I've assumed that it's a problem of resources getting too low, even tho I've got Windows XP and that's theoretically not happening on that platform.

Anyone else with this problem? FWIW, I've got 512mb ram, plenty of disk space, and 1.3 ghz cpu.