AutoCAD Mechanical 2009 x64 SP3 - FactoryCAD 14

Double-clicking on a block opens the "Edit Block Definition" window as expected. The problem is that the "Block to create or edit" field is empty, forcing me to chose from the list below the field. Similar problem: Select Block-->Right Click-->"Edit block in place" prompts me to "Select reference:".

Double-clicking on text starts the text edit command, but still asks me to "Select an MTEXT object" instead of opening the editor with the originally picked text in it.

It seems that the initial selection is not "sticking" as the command is activated.

All variables seem to be correct: pickfirst=1, dblclkedit=1, blockeditlock=0

Oddly enough, ACAD 2010 (sans FactoryCAD) works fine on the same machine.

Any help would be greatly appreciated!