For testing I had to remove the configuration settings for the 'Wacom Bamboo' tablet from your settings file (no extended input device available here) and failed to reproduce the issue: adding nodes still worked by double-clicking the path in the node editor (Inkscape 0.47+devel r9300 on OS X 10.5.8).
Can someone test with a tablet if possibly conflicting snap or node-editing settings prevent adding nodes with the pen?
For testing I had to remove the configuration settings for the 'Wacom Bamboo' tablet from your settings file (no extended input device available here) and failed to reproduce the issue: adding nodes still worked by double-clicking the path in the node editor (Inkscape 0.47+devel r9300 on OS X 10.5.8).
Can someone test with a tablet if possibly conflicting snap or node-editing settings prevent adding nodes with the pen?
Could this be similar or related to <http:// thread. gmane.org/ gmane.comp. graphics. inkscape. user/13251> (fixed in r9219)?