I am having this happen on one of my sequences. It started with a corrupt "beats" file (which has been resolved), and now the save hangs up about 2 out of 3 attempts. First, the models at the bottom stop cycling, then I get the circle going around and the "not responding" at the top. If I click anywhere, the screen goes white. I have to close the program at this point. So far, the sequence has apparently saved. Sometimes it take upwards of 30 seconds to save the sequence when it saves (4.0 gHz, 8 cores, 16 Mb of ram), and if this is normal, I'm OK as long as the sequence is saved. This is the same file I was having some trouble with earlier. I guess what I am asking is how long does it take to save a moderately involved sequence? There are around 4,500 channels.