Help! Blank Screen Only, with DB_DataObjects

Hi, I've built an entire site using about 15 DB_DataObjects It runs just fine on my windows box using Apache 2 & MySQL 4.1.1alpha, php 4.3.x BUT I had to transfer it over to the hosting box last night (linux,apache2,mysql4.0.22,php 4.3.x) and now it doesn't work *at all*. All I get is a completely blank screens. I've tried using the Firefox LiveHttpHeaders plug-in, and the pages don't even return any headers. I spent 5 hours on the phone with the hosting company tonight and they assured me that it's all good on their end. They even wrote a test script just using PEAR::DB, and were able to pull data from my database with it. I've Googled all over the place, to no end. I did find something about define('DB_DATAOBJECT_NO_OVERLOAD', 1); so I tried that (before any DAOs were included), but it made no difference. Also, I include a config.php file instead of parsing the dataobject.ini file. I'm at my wit's end. **ANY** thoughts and/or help is MUCH appreciated. Else my client bussa'cap in my behind. Derek