dude, you double posted this, so check out the answer i gave to your other thread.
well, it doesn't seem to be modchip-related, so you may be in the wrong forum...of course, i could be wrong.
when you launch a game disc, does the same thing occur? have you tried using a different program for your dashboard? (xbmc, avalaunch, etc)
this sounds like an issue booting the dashboard software. could be a slow responding (or failing) HD also...
admins, please close the other thread.