Connection Reset on PHP 5.3

[eluser]javaMonk[/eluser]
I had thought CI 1.7.3 was PHP 5.3 compliant.

ouch, I have a whole customized CMS app written in BackendPro, Matchbox, and CI 1.7.x (I have it deployed in lots of places).

I've gotten it to work fine in a 5.3 environments (after a few configuration tweaks).. Was wondering if anyone had a clue as to what would cause the connection reset while instantiating the class....

anyone else? ..thnx much