I can read posts on my Blackjack, but can't respond. I can create the response, but the 'Submit' button doesn't do anything. Anybody have similar issues?

Is it when you do quick reply or the full reply?

For the quick reply, it is a standard form submit vs. the Full reply which actually is a button that executes Javascript.

If it's the full reply feature, is your phone enabled for Javascript?

Lorens right....You have to enable Javascript...I had the same problem with my blackberry Pearl

These things are now allowing JS calls? Man I'm out of the loop.