I have an interesting problem of sorts.

I use Bridge Base Online ( a massive online multiplayer bridge software found at www. bridgebase.com ) to play bridge over the internet. But for some reason, I seem to have been banned from there. Now heres the thing. Anyone else trying to use the software from my PC, this specific PC, is blocked too. Now, they haven't blocked my account, because on my lap-top, using my normal dail-up, I can connect and play just fine. Apparently it's just THIS machine they seem to have blocked, and ANY logins from this machine.

I'm using WindowsXP on my machine, and connect to the net using an ADSL connection. The IP is dynamic. So, obviously, they aren't blocking the IP.

I un-installed the software, cleared out the Cookies ( assuming they could be one way my PC was being identified ) and downloaded and re-installed the software. Same thing. Login blocked for any account. I then un-installed the software, changed my PC name and ( after rebooting ) re-installed it. Once again, no luck. Now, if it's not my PC name, if it's not my IP, and if it's not a cookie, then how are they able to identify my machine? It's not my account, because like I said, I can connect from any other PC, except this. Any ideas?