They are all my want,but I can't get all. (about JScrollPane)

now, the JScrollPane drive me mad..
I add a JPanel into a JScrollPane object
(the JPane's size is larger than the JScrollPane's),
then add the JScrollPane into a JTabbedPane.
when it run,
parts of the content(Example:some words) in the JPanel
would display in the JTabbedPane..
It is no use calling the "repaint".
so,I set the JScrollPane "getViewport().setScrollMode.
JViewport.BACKINGSTORE_SCROLL_MODE)",
this time,it displays properly.
but,another question appears,
scrolling become very slow.
give me a hand.
Thanks in advance

firstly,thanks your reply.very thanks.
you may misunderstand my means.
I means the text that should be displayed in the
JPanel displayed out of the bounds of the JPanel.
though I use "repaint()",
those text wrong displayed still there.
so,I change the method,
calling "myJScrollPane.getViewport().setScrollMode(JViewport.BACKINGSTORE_SCROLL_MODE)",
in this way,there aren't text wrong displayed.
but ,scrolling the JPanel become very very slow.
In jdk1.3's doc,it tell me " it requires a large
chunk of extra RAM".
there are 256M RAM in my PC.
how much RAM it need?
~dave,
can you mail me to discuss more?

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