Hallo, John Harrison hat gesagt: // John Harrison wrote:I have now tried pd -nrt -nosound -nomidi and it was the same thing: complete computer freeze with even mouse and keyboard not responding, requiring me to pull the plug. I've tried both as root and not.Can you try to start Pd under a debugger? That is: $ gdb /usr/bin/pd (gdb) run and if Pd crashes and your machine is still alive try to catch a backtrace with: (gdb) bt Ciao