i can't start my LW 4.8.1 there is a bug and I reinstall the software but nothing happens

LimeWire version 4.8.1
Java version 1.5.0_02 from Sun Microsystems Inc.
Windows XP v. 5.1 on x86
Free/total memory: 888376/5750784

FATAL ERROR!

java.lang.NullPointerException
at java.awt.Dimension.<init>(Unknown Source)
at javax.swing.plaf.basic.BasicProgressBarUI.getPrefe rredSize(Unknown Source)
at javax.swing.plaf.basic.BasicProgressBarUI.getMinim umSize(Unknown Source)
at javax.swing.JComponent.getMinimumSize(Unknown Source)
at javax.swing.BoxLayout.checkRequests(Unknown Source)
at javax.swing.BoxLayout.minimumLayoutSize(Unknown Source)
at java.awt.Container.minimumSize(Unknown Source)
at java.awt.Container.getMinimumSize(Unknown Source)
at javax.swing.JComponent.getMinimumSize(Unknown Source)
at javax.swing.BoxLayout.checkRequests(Unknown Source)
at javax.swing.BoxLayout.minimumLayoutSize(Unknown Source)
at java.awt.Container.minimumSize(Unknown Source)
at java.awt.Container.getMinimumSize(Unknown Source)
at javax.swing.JComponent.getMinimumSize(Unknown Source)
at javax.swing.BoxLayout.checkRequests(Unknown Source)
at javax.swing.BoxLayout.preferredLayoutSize(Unknown Source)
at java.awt.Container.preferredSize(Unknown Source)
at java.awt.Container.getPreferredSize(Unknown Source)
at javax.swing.JComponent.getPreferredSize(Unknown Source)
at java.awt.GridBagLayout.GetLayoutInfo(Unknown Source)
at java.awt.GridBagLayout.getLayoutInfo(Unknown Source)
at java.awt.GridBagLayout.ArrangeGrid(Unknown Source)
at java.awt.GridBagLayout.arrangeGrid(Unknown Source)
at java.awt.GridBagLayout.layoutContainer(Unknown Source)
at java.awt.Container.layout(Unknown Source)
at java.awt.Container.doLayout(Unknown Source)
at java.awt.Container.validateTree(Unknown Source)
at java.awt.Container.validateTree(Unknown Source)
at java.awt.Container.validateTree(Unknown Source)
at java.awt.Container.validateTree(Unknown Source)
at java.awt.Container.validate(Unknown Source)
at java.awt.Window.show(Unknown Source)
at java.awt.Component.show(Unknown Source)
at java.awt.Component.setVisible(Unknown Source)
at com.limegroup.gnutella.gui.GUIMediator$1.run(GUIMe diator.java:321)
at java.awt.event.InvocationEvent.dispatch(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForHierar chy(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarch y(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)


-- listing session information --
Current thread: AWT-EventQueue-0
Active Threads: 13

-- listing threads --
Image Fetcher 3: 1
IconLoader: 1
Image Fetcher 2: 1
Java2D Disposer: 1
TimerQueue: 1
main: 1
AWT-Windows: 1
AWT-Shutdown: 1
AWT-EventQueue-0: 1
Thread-6: 1
Timer-0: 1
Image Fetcher 1: 1
Image Fetcher 0: 1


-- listing properties --
APP_WIDTH=838
PORT=6348
APP_HEIGHT=706
WINDOW_Y=27
WINDOW_X=55
EVER_ACCEPTED_INCOMING=true
FILTER_HASH_QUERIES=true
TOTAL_UPTIME=3232
LAST_GWEBCACHE_FETCH_TIME=1114158599884
AVERAGE_UPTIME=3232
INSTALLED=true
UNSET_FIREWALLED_FROM_CONNECTBACK=true
COUNTRY=
CONNECTION_VIEW_ENABLED=true
CLIENT_ID=380A0CE675B18B34D49CE001CB6C1100
LAST_EXPIRE_TIME=1114158511226
RUN_ONCE=true