HP iPAQ hw6510 / hw6515

Hello,

I need help getting my HP6515 to sync with my desktop. when I plug the 6515 into the desktop cradle, my computer starts up active sync, and then starts to look for changes. does that for awhile, then says not connected and does not sync up. I used to have the SMT5600 and it synced up all the time, I have created a new " device". any suggestions would be great,


Thanks


Phil