Artifacts in JTable TableHeader, when size changed via setPreferredSize

Hi
I'm using a JTable to show some data instead of a JList.
Now when i change the size of the table header via setPreferredSize, the last column header does some graphical errors/artifacts when i scroll to it. How can I avoid this, but still change the size of the header?
The table is added to a scroll pane and the scroll pane is added to the center area of the panel, which has border layout.
Any and all help is appreciated, thanks a lot.
- Hessi

Don't change the size of the table header.
Change the size of the TableColumn. Read the JTable API and follow the link to the Swing tutorial on "How to Use Tables" for a working example.

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