Beta 4 problem(s)

I've been using the 7.1 beta version for quite a while now and just upgraded
to beta 4, I've noticed my application is reporting that the backend shuts
down prematurely... (I'm using PHP).. I'm having a time trying to debug
this.. I know it's not my code as this works fine on a 7.0.3 install.. I've
upped my debug level to the max and don't see anything indicating that the
backend crashed, so I'm at a loss..

In the PHP code, I just go to execute a query (after checking to make sure
the value returned by pg_connect isn't 0) and I get a PHP warning "Warning:
1 is not a valid PostgreSQL link resource in ...".

I'd like to figure this out, any pointers on what I might be able to do in
the backend?

It seems to be somewhat PHP related because I can take the individual
queries and run them in psql just fine.. Are there any known issues in beta4
that might cause this kind of thing to happen? Are there any changes that
anyone can think of that might need to happen to the PHP PostgreSQL support
for 7.1? I'd be happy to look into doing making the changes if so..

Thanks!!

-Mitch