I went to http://www.flyertalk.com/awards/.

Clicked VOTE! button and was sent to http://www.flyertalk.com/forum/vbvoting.php?vid=3.

I clicked Middle East/Asia/Oceania.

I chose only the following options:-
Airline #1: Qantas
Airline #2: Virgin Australia
Airline #3: Air NZ
Airline #4: (left blank)

All other options (including hotel and car rental) left blank.

Clicked SUBMIT.

Got a "You didn't select any option as votes. Please try again" error.

This occurs on my usual Chrome browser as well as a Firefox browser that had all browsing data (timeline 'everything' selected and all object types seleted) deleted.

Seems like an error on your end. I wonder if it is having trouble with the region change and/or the fact I only voted for airlines?

Havn't tried playing round just in case I accidently submit a ballot that does not reflect what I wanted to vote for.

- James