Good point Sean. For those who have a dedicated internet connection - broadband, for example, you would not be able to vote twice unless you sign on from another computer.

I checked with the software developer regarding this shortcoming: The only way to see the results is to vote in the poll. If you have a dial-up connection, each time you log on, you get a different IP address so the system doesn't think you have previously voted. Thus you have to vote again to see the current results.

There is no way around this catch 22 - I'll look into some of the other polling software to see if they can do any better.