runs for a few minutes, then *boom* - heres a backtrace: **** alsa_pcm: xrun of at least 0.585 msecs Program received signal SIGFPE, Arithmetic exception. [Switching to Thread 49156 (LWP 14497)] #0 0x0000000000406592 in ?? () #1 0x00002aaaac332cae in alsa_driver_listen_for_clock_sync_status () from /usr/lib64/jack/jack_alsa.so #2 0x00002aaaaabc99b1 in jack_driver_nt_init () from /usr/lib/libjack.so.0 #3 0x00002aaaaae65bec in pthread_start_thread () from /lib/libpthread.so.0 #4 0x00002aaaaae65ca3 in pthread_start_thread_event () from /lib/libpthread.so.0 #5 0x00002aaaab1b0673 in clone () from /lib/libc.so.6 #6 0x0000004000000002 in ?? () generally similar to this, but not always the same, depending on the combination below: jackd 0.99 or 0.100.7 gcc 3.4.5 or 4.0.2 or 4.1.0 linux vanilla-2.6.15 or gentoo-2.6.15 (-ingo randomly freezes on one, and reboots during boot on the other) AMD a64-3000+ or turion mt-37 audio: ac'97 or echoaudio i probably havent tried ALL the combinations - proably 80% of them. some time if im feeling motivated i'll do a full -g recompile of everything.. in case that might provide more clues. i just figured i should be able to get at least one of the two machines working right. but after excessive dragon-chasing have resigned to defeat.. even if jackd didnt crash, its not like my favorite audio apps pd or chuck would work right yet :) oh, i can play mp3s in amarok thru XINE fine btw..