Hi Shane,
from both your "partial answer" and the final problem, I'd guess it's just a case of your IE cache needing updating. Press Ctrl-F5 and see if anything changes.
I've tried example 31 here, with IE 7, and it seems ok. Perhaps others would like to see what's it like with them?
Regarding the "partial fix" of unticking compressed & combined - this will result in different files being sent to the browser, and hence bypassing the old files that were cached there.
Cheers
Bruce