Usb connection doesn't work propwerly,with apprently no reason

[°Dexter°]

Hi guys,i used my Diamond as a modem yesterday,and it worked fine.
In the afternoon,it wasn't recognized anymore if i left "enable advanced network functions" activated,and it doesn't ask me which kind of connection i want to use,even if i uncheck that box...i always have to set the connection type from Start->setting->connections->Usb...
How could i solve this double problem?
I already reinstalled activesync on my pc,should i do on Diamond too?if so,where could i find the cab?
Obviously the phone and the usb were in the same conditions as in the morning
Thanks for help,it's a really annoying problem

[MJNewton]

It might be worth trying it without 'enhanced functions' enabled as this can sometimes cause troubles. Also ensure Activesync is not running on the phone.

I know these were not the same conditions you had when previously working, however a connection of this nature can sometimes be a bit flaky and rejigging things is always worth a shot.

Mathew