Thomas,
Hope this isn't getting annoying yet.
When I've used pool in a Pd session, if I try to quit Pd, the gui disappears, but the process still seems to be running. In the console I get:
*** glibc detected *** pd: double free or corruption (fasttop): 0x08164048 *** pd_gui: pd process exited
That number changes every time. I have to ctl-C in the console to get it to shut down.
cheers, David