! right clicked tc-lisp-talk in Browser and clicked Run ! Factor crashed with the flowing: ~/factor$ ./factor X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of failed request: 42 (X_SetInputFocus) Serial number of failed request: 165 Current serial number in output stream: 167 Locking assertion failure. Backtrace: #0 /usr/lib/libxcb-xlib.so.0 [0x7f57f525a97c] #1 /usr/lib/libxcb-xlib.so.0(xcb_xlib_lock+0x15) [0x7f57f525aa15] #2 /usr/lib/libX11.so.6 [0x7f57f81dd323] #3 /usr/lib/libGL.so.1 [0x7f57f953b0e6] ~/factor$