Hey I was having this problem for a long time, but I FIXT IT!!! ok so if your still having this problem, then this is what you need to do, number 1 make sure you have 4 or mor GIGS of ram, ok, and here is the number 1 thing that fixed my problem with the asio error, I took my VGA graphic video card out and put one in that says nVideo on it, Geforce has a card like that, and as long as it has the nVideo chipset in there your good, put the new vga nVideo card in and bingo, problems solved, pro tools has major conflics when you use any other graphic video card that does not have the nVideo chipset in it, also your firewire card has to have the TI chipset in it, i replaced my old one with a new one from Siig and it has the ti chipset in it, and that worked great, no audio jumps or skips or anything, but the major one here is change your video graphic card, trust me, even though it has nothing to do with audio, it still conflicted with pro tools and would trip the sync a bit, try it out guys spread the word