are there any php extensions your code requires that arent on the production system? have you checked the php.ini settings on the new host to ensure theyre the same as your test box? that would be a good idea no matter what, and you might turn something up regarding your problem.
can you run the symphony unit tests on the new box? they might expose a problem. setup everything the same as you have it on your test box then execute the unit tests. -nathan
