6800 cable connection

[3dfx]

I'm trying to connect my 6800 to Nokia PC Data Suite with a Prolific USB to COM data cable. Absolutely ineffective. I downloaded the latest drivers for Nokia 6800's modem, the lates Data Suite, the DKU-5 drivers, but...

If you have any experience please share it

[3dfx]

Hmmm it ain't work... I select the correct com port, but Data Suite still showes "No phone connected". I read somewhere that there are two types of Prolific PL2303 cables. The, capable of using with Data Suite lights up the phone showing Data Accessory connected, or something. The other one can be used only with soft such as Oxygen PM (or other using FBUS), and is not capable of accessing modem AT commands. Obviously I've got the incorrect one, because, using Windows Hyper Terminal I can't access the phone. Any comments please?