Thanks Phil. The users are entering descriptive text and occasionally they have a lot to enter (hence the 2000 character limit). I was aware of the default height option, but as you mention, as new text is entered, the box will simply grow and once it get's big enough, the user is unable to see the new text they're typing. They also can't scroll up or down to make corrections or review what they've added.
Ideally, you could set the default text box height and then be able to scroll within it but it sounds like this isn't an option currently.
Thanks,