Adding Questions to poll changes options

[#1]

I started a poll with the ability to change answers enabled. Subsequently I added another option to the poll. This disabled the ability to change answers and there was nowhere for me to re-enable this feature (a mod had to do it for me).

[#2]

The test poll I created in the Chat forum had the option to allow people to change their votes enabled. This shows up as a Remove Vote link beside the poll which then allow you to re-vote.
I had a typo on one of the candidate names. I edited the poll to correct the typo and now the Remove Vote option is no longer there.

[#3]

See my reply

[#4]

James, if you edit the poll, do the options to specify the number of votes and Allow user to change vote show up?
This is what I see:

[#5]

Ooh, I had an extra box.

[#6]

Jelv,
Try locking the voting and then editing the poll.  It then gives you an extra box to allow customers to change vote.

[#7]

Lock the poll? - I can't see a lock option!