when i play hexter from rosegarden and with 32note of poliphony i get some xrun with jack. the same if i play "The Master" synth in LMMS. now i got a doubt: what are the raccomended requirements to make audio with linux? i got a celeron 1.7ghz and 512 mb ram and i'm using ext3 filesystem. with this configuration and windows xp and cubase sx2 i manage to record & play with B4 fm7 absynth battery hyper canvas, all open at the same time and i don't have problems. is it possible that with linux and rosegarden and hexter i got xrun problems? may they depend from system configuration? i use mandriva's kernel multimedia with realtime module.... bye emanuele