Lee Revell wrote: > Sounds like qsynth is the problem, it probably has a memory leak. Qsynth is not the only application which can trash the system, if I try to use it through JACK. As soon as I try to do real work with Timidity, it also eats my memory. In general it seems I uickly run out of memory when I use JACK. Simple things work though. I'll try to upgrade my system to 768Mb RAM and see if it still is a problem. Peter