Hey Lineguy,
That is how the twitter page is suppose to work. Every time you see it flash, the system is checking for any new tweets posted by the captains. If there are new tweets at the time it checks (once every 30 seconds), then it will automatically post up there the new tweet. If there are no new tweets, then nothing will happen and it will check again 30 seconds later. Hope this helps.
Enjoy!
Chad