libpq crashing under Vista

I recently upgraded my computer to Vista.  When I went to run my application (which ran beautifully under XP), the
releasebuild (VC++ 6) crashes every time libpq attempts to connect to the server I have running on localhost.  The
debugbuild runs fine.  Through logging, I've found that it happens inside the PQconnectdb function and because I get no
firewallnotifications, I know it's not even attempting to connect over the network. <br /><br />I've tried using
version8.1.9 and 8.2.5 and get the same result in both.  If I link with the libraries included with PostgreSQL 8.2.5,
itworks fine, but I'd rather have a statically linked version (my debug build has better performance when linked to the
staticlib than the release build did linked to the DLLs). <br /><br />Again, this exact same setup with the exact same
versionof PostgreSQL worked fine under XP.  I'm new to Vista, so perhaps there's something I'm overlooking.  Any ideas
oradvice is appreciated.<br /><br /> Josh<br />