I've got a null pointer exception while starting ide.

java.lang.NullPointerException
	at org.netbeans.core.ShortcutsFolder.addShortcut(ShortcutsFolder.java:146)
	at org.netbeans.core.ShortcutsFolder.readShortcuts(ShortcutsFolder.java:133)
	at org.netbeans.core.ShortcutsFolder.refresh(ShortcutsFolder.java:111)
	at org.netbeans.core.ShortcutsFolder.<init>(ShortcutsFolder.java:78)
	at org.netbeans.core.ShortcutsFolder.initShortcuts(ShortcutsFolder.java:59)
	at org.netbeans.core.NonGui.initializeMainWindow(NonGui.java:187)
	at org.netbeans.core.NonGui.run(NonGui.java:96)
	at org.netbeans.core.startup.Main.start(Main.java:395)
	at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:90)
[catch] at java.lang.Thread.run(Thread.java:595)

here comes log file:

-------------------------------------------------------------------------------
>Log Session: Thursday, March 23, 2006 5:09:42 AM EET
>System Info: 
  Product Version         = NetBeans IDE 5.0 (Build 200601251500)
  Operating System        = Windows 2000 version 5.0 running on x86
  Java; VM; Vendor; Home  = 1.5.0_06; Java HotSpot(TM) Client VM 1.5.0_06-b05;
Sun Microsystems Inc.; C:\Program Files\Java\jdk1.5.0_06\jre
  System Locale; Encoding = tr_TR (nb); Cp1254
  Home Dir.; Current Dir. = C:\Documents and Settings\Administrator;
C:\Documents and Settings\Administrator\Desktop\eksoft\netbeans\bin
  Installation; User Dir. = C:\Documents and
Settings\Administrator\Desktop\eksoft\netbeans\nb5.0;C:\Documents and
Settings\Administrator\Desktop\eksoft\netbeans\ide6;C:\Documents and
Settings\Administrator\Desktop\eksoft\netbeans\enterprise2;C:\Documents and
Settings\Administrator\Desktop\eksoft\netbeans\harness;C:\Documents and
Settings\Administrator\Desktop\eksoft\netbeans\platform6; C:\Documents and
Settings\Administrator\.netbeans\5.0
  Boot & Ext. Classpath   = C:\Program
Files\Java\jdk1.5.0_06\jre\lib\rt.jar;C:\Program
Files\Java\jdk1.5.0_06\jre\lib\i18n.jar;C:\Program
Files\Java\jdk1.5.0_06\jre\lib\sunrsasign.jar;C:\Program
Files\Java\jdk1.5.0_06\jre\lib\jsse.jar;C:\Program
Files\Java\jdk1.5.0_06\jre\lib\jce.jar;C:\Program
Files\Java\jdk1.5.0_06\jre\lib\charsets.jar;C:\Program
Files\Java\jdk1.5.0_06\jre\classes;C:\Program
Files\Java\jdk1.5.0_06\jre\lib\ext\dnsns.jar;C:\Program
Files\Java\jdk1.5.0_06\jre\lib\ext\localedata.jar;C:\Program
Files\Java\jdk1.5.0_06\jre\lib\ext\sunjce_provider.jar;C:\Program
Files\Java\jdk1.5.0_06\jre\lib\ext\sunpkcs11.jar
  Application Classpath   = C:\Documents and
Settings\Administrator\Desktop\eksoft\netbeans\platform6\lib\boot.jar;C:\Documents
and
Settings\Administrator\Desktop\eksoft\netbeans\platform6\lib\org-openide-modules.jar;C:\Documents
and
Settings\Administrator\Desktop\eksoft\netbeans\platform6\lib\org-openide-util.jar;C:\Program
Files\Java\jdk1.5.0_06\lib\dt.jar;C:\Program Files\Java\jdk1.5.0_06\lib\tools.jar
  Startup Classpath       = C:\Documents and
Settings\Administrator\Desktop\eksoft\netbeans\platform6\core\core.jar;C:\Documents
and
Settings\Administrator\Desktop\eksoft\netbeans\platform6\core\org-openide-filesystems.jar;C:\Documents
and
Settings\Administrator\Desktop\eksoft\netbeans\nb5.0\core\org-netbeans-upgrader.jar;C:\Documents
and
Settings\Administrator\Desktop\eksoft\netbeans\nb5.0\core\locale\core_nb.jar;C:\Documents
and
Settings\Administrator\Desktop\eksoft\netbeans\ide6\core\org-netbeans-modules-utilities-cli.jar
-------------------------------------------------------------------------------
java.beans.IntrospectionException: Method not found: isİdeIdentity
	at java.beans.PropertyDescriptor.<init>(PropertyDescriptor.java:89)
	at java.beans.PropertyDescriptor.<init>(PropertyDescriptor.java:53)
	at
org.netbeans.modules.autoupdate.SettingsBeanInfo.getPropertyDescriptors(SettingsBeanInfo.java:49)
	at java.beans.Introspector.getTargetPropertyInfo(Introspector.java:479)

<<<-----------removed some lines here -------------->>>

	org.netbeans.modules.web.debug/1 [2.8.1 200601251500]
	org.netbeans.modules.editor.errorstripe/2 [2.2.1.1.1 1 200601251500]
	org.netbeans.modules.versioning.system.cvss/1 [1.7.1.1.42.1 1 200601251500]
*********** Exception occurred ************ at 5:09 AM on Mar 23, 2006
java.lang.NullPointerException
	at org.netbeans.core.ShortcutsFolder.addShortcut(ShortcutsFolder.java:146)
[catch] at org.netbeans.core.ShortcutsFolder.readShortcuts(ShortcutsFolder.java:133)
	at org.netbeans.core.ShortcutsFolder.refresh(ShortcutsFolder.java:111)
	at org.netbeans.core.ShortcutsFolder.<init>(ShortcutsFolder.java:78)
	at org.netbeans.core.ShortcutsFolder.initShortcuts(ShortcutsFolder.java:59)
	at org.netbeans.core.NonGui.initializeMainWindow(NonGui.java:187)
	at org.netbeans.core.NonGui.run(NonGui.java:96)
	at org.netbeans.core.startup.Main.start(Main.java:395)
	at org.netbeans.core.startup.TopThreadGroup.run(TopThreadGroup.java:90)
	at java.lang.Thread.run(Thread.java:595)