Apple Logic Pro /LogicExpress Discussion

It's funny, I have Logic Express running on a PowerBook and I have
similar freeze & crash issues! Usually for me it's at the start of a
session and I am playing down my song. As soon as the song hits an
instrument track with plug-ins, I get an overload message.
"Stop." "Play" -and everything's ok for the rest of the session...
-Usually.

Perhaps it's more of a Logic issue and less about the program working
with a Dual Core chip vs PowerPC chips...