Yesterday I upgraded my MBP (16 G RAM) to Mac OS 10.8.2 (Mountain Lion). Today I tried to start GGTS again, but now get the error message

Error occurred during initialization of VM
Could not reserve enough space for object heap

I had set the sizes in GGTS.ini to

-Xmx2048m
-XX:MaxPermSize=768m

which worked perfectly well with OS 10.7.x (Lion) and still works with my parallel Eclipse Indigo (3.7). If I reduce the the heap/permgenspace size to

-Xmx1536m
-XX:MaxPermSize=512m

GGTS is working again. I upgraded from GGTS 3.0.0 to 3.1.0 through the standard upgrade process (Help->CheckForUpdates) today. GGTS will not even write logs to ~/.workspaces/.../.metadata/.log nor to ../../../configuration/xxx.log.

Any ideas are welcome ... I suspect I will be running out of space sooner or later otherwise. Should I file a bug report?