Pls Help: I cannot add any component with my GUI Builder by drag/drop

Hi there

i think i got a freaky problem. I hope somebody there can help. I am
currently using Netbean 6.1 and Jdk 1.5_06 (freshly downloaded). i got this
problem that i cannot add in anything for my GUI with the drag/drop. As
attached is a print screen. 
http://www.nabble.com/file/p17411692/printscreen.JPG printscreen.JPG 

It only occurs on my computer and the same file will look fine at other
computers. In other words i cant preview any GUI in the netbean 6.1 (but the
other people can view the same file w/o prom). I tried it out with the
tutorial on netbean website
(http://www.netbeans.org/kb/60/java/quickstart-gui.html) and i was stuck at
"Adding Components: The Basics"  cos i cannot add anything to it. If you
noticed, my printscreen has the whole area in grey but in the tutorial, it
has a smaller grey area that the components can be added to. (With a white
background).  http://www.nabble.com/file/p17411692/this%2Barea.JPG
this+area.JPG 

I tried reinstalling Netbean with 6.0.1 or JDK with 1.6_06 and some other
combination that the same problem occurs. I also tried to install the same
version of JDK and netbean on another computer and such problem does not
occur.

Please tell me what settings i may have done wrong or what could be wrong.
Thanks!

Best Regards
Vivian
-- 
View this message in context: http://www.nabble.com/Pls-Help%3A-I-cannot-add-any-component-with-my-GUI-Builder-by-drag-drop-tp17411692p17411692.html
Sent from the Netbeans - UI mailing list archive at Nabble.com.