The bottom line of PV should show which mappings files are loaded (and if there are none, just display none iso gene: (empty), metabolite (empty), interactions (empty) ).
Fixed with #122 (sorry two commits got merged by accident, the class related to this issue is: modules/org.pathvisio.desktop/src/org/pathvisio/desktop/GuiMain.java ).
The bottom line of PV should show which mappings files are loaded (and if there are none, just display none iso gene: (empty), metabolite (empty), interactions (empty) ).