FWIW, wanted to share some impressive performance I managed to pull off earlier today from my new toy: RECIPE: 1 Macbook Pro 1 Ubuntu Dapper (vanilla 2.6.15-26 kernel) 1 adjustment to rtlimits (total of 2 lines) 1 fglrx driver 1 Xgl with all eye-candy you can get 1 JACK + Qjackctl 1 32 x 3 buffer size Mix it up. Run in realtime. RESULT: xrun-free 2ms latency on a crummy built-in soundcard (2 in, 6 out) plus all the eye-candy goodness you can possibly dream of at approx. 14% CPU. ;-) Ivica Ico Bukvic, D.M.A. Composition Virginia Tech Dept. of Music - 0240 Blacksburg, VA 24061 (540) 231-7047 (540) 231-5034 (fax) ico@xxxxxx http://www.music.vt.edu/people/faculty/bukvic/