Hi Erel,
the prog you wrote with Visual Studio 2005 did not show any data in the textbox, but it seems to connect to the Serial.
And I tested a little bit on a friends device with WM6 and buildIn-GPS, but there were no problems at all.
So, I`m sorry that I suggested an error in B4ppc-libaries. It really seems like a bigger problem with my device.
I think the manufacturer won`t be intrested in my problem, even if every HTC P3300 has it.
I don`t know enough about the deeper backgroud how this "serial/gps and program talking to each other" works. Now I`m a bit disappointed that I can`t find a solution.