JFrame.pack() causes problems with jtabbedpane(making new tabs)and resizing

I have a JFrame with a JTabbedPane inside of it. Inside of each tab I put a JPanel with a JTextArea in it. When I create a new tab, I do something like textArea.requestFocusInWindow();
However, this will not work unless I do a frame.pack() right after I created the new tab and right before that line of code.
This in turn causes another problem. If I resize the jframe and then create a new tab, the window will snap back to the size it had before creating the tab. I assume this has to do with the pack() function, however nothing else I try will make the cursor blink in the JTextArea.
Is there a solution to this...either something to make the cursor blink or something other than the pack function to update the JFrame?
Thank you

This posting should help you out:
http://forum.java.sun.com/thread.jspa?forumID=57&threadID=581478

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JFrame.pack() causes problems with jtabbedpane(making new tabs)and resizing

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