Hi All,
I have found similar posts on the forum but not one that helps me as yet.
Despite my Windows Vista comp. recognising and syncing with Kies I have a problem , when the computer/Kies is connected to my S2 by USB I get the following message....
...Unsupported Device Alert. This device is not supported by Kies 2.0. Make sure the device is supported and try again....
Needless to say WI - FI connection doesn't even get that far!
Any suggestions as to enabling Kies to support the phone please?

I am not sure. But pl try this out. Just go to Settings, then open Applications, then Development and see whether 'USB debugging' is enabled. If it is so, disable it and then try connecting Kies. It should work.