Hi,
noticed such hanging too,
it seems it happens only in fullscreen mode and it seems only while loading something,
but when going back to windowed mode it works normally again...
it's seems to a flashplayer bug, becomes internally in krpano there is no difference between
fullscreen and windowed mode, just a flash parameter is switched, nothing more...
the problem it is happens only sometimes, I haven't found a reliable way to reproduce it,
a reliable way would help finding a workaround or making an example for adobe to fix it,
best regards,
Klaus