Why would you leave it running overnight? If its because it takes so long to bounce down, then yeah, there's a problem.
Can you do a screenshot that shows your mix window and all the effects you're using? Try a typical track. I think you'll need to do one showing all the sends and one showing all the inserts.
Also, what sample rate/bit depth are you using? And what OS?


I have more problems, but they are minor.
I'll get a screen shot up asap. I can't at the moment.