I'm trying to ask a new question in stack-overflow through the Opera browser installed on my ubuntu 10.10. But I'm not able to press the submit button Opera. Everything works fine with firefox and IE browsers.
Taking a look, there was some Opera-specific code in the tag plugin that suppressed submission when you press enter
Apparently newer versions of Opera handle this differently.
I removed the opera "fix" but there is a side-effect; pressing enter will submit the form in most cases (unlike all other browsers). You will need to select autocomplete tags using your mouse and not the keyboard. Well, technically you can use tab then shift+tab but that's a bit of a workaround.
Shrug. Such is the delightful, delightful world of Opera.