Someone else is going to come along and ask "Did you hard reset after the flash?"

Even though the phone -does- reset after a flash, you should hard reset it anyway, as the reset is not always complete.

Which version of Juicy's ROM have you used?

The latest, with the TP2 Manila, works fine. Even the older version (032109H) with the regular manila, should start just fine with no other programs installed.

So, try a hard reset, see if that works for you.