It seems that plot2d in Maxima CVS is broken for cmucl. Any plot2d command hangs forever (at least very long time) using 90% CPU. The same plot2d with Clisp and GCL are OK. Cmucl version is 18e release. Best wishes, Vadim -- Vadim V. Zhytnikov <vvzhy@mail.ru> <vvzhy@netorn.ru>