GPS lock on flashed vx6900

[rolandroland]

Radio: 3.37.10
ROM: Vista 700

I followed the general how to (http://forum.ppcgeeks.com/showthread.php?t=24979) and everything worked great. I am up and running on everything but MMS (but I am verifying settings) and the GPS doesn't lock with a primer app or in Google or MSN software. My question is is it worth trying to reflash the Vista 700, try another ROM from another author or attempt the Titan radio. Just before I spin my wheels any more I was looking for some practical advise.

Thanks,
Roland