I'm sorry you're team is having some trouble with the Plugin, this seems to be an issue on some systems either the OS or Flash versions possibly, that we've yet been able to pinpoint a solution. When you are typing, be sure to keep the cursor hovering over the Plugin panel itself and it should not freeze on you. If you take the cursor off the panel before typing it will sometimes not allow you to do so. If that still does not help please let me know.
In the meantime I will bring this issue up with our development team again and see if there has been any progress in finding a solution.