having trouble loading DA2.31

this is the 2nd time in three days that DA has hung on loading at start. this happens while the progress bar says ‘building scripts menu.’
first time i reinstalled da and all was well. (i had to use acivity monitor to force a shut down both times.)
now it happens again. i have disabled open at login until this is fixed.
it seems to load ok right now, but this is a recurring problem on my 10.5.6 mac mini.
can you advise me?
thanks in advance,