yikes my bad about the post date.  i wonder what the 64 sample problem is with asio?? i know m-audio disabled the 64 sample option on my unit the fast track ultra because of freezing issues.  the lowest i can get under wasapi is 144 samples. at least i can get down to 1.3ms at 96khz.  here's hoping usb3 or thunderbolt support and win 8 qualified drivers come along someday. ;)