Ok guys, problem is still here.
Well, not the same problem of the starting thread:
I can't connect my Nokia 5800 XM to my Windows7 Toshiba Satellite pro.
I've created an ad/hoc connection but when trying to connect from my phone it says that login is failed and a ! appears on the PC.
Really really dunno what to do.
I'm using the internal PC wireless, no third party addons.