Product Version = NetBeans IDE 6.9.1 (Build 201011082200)
Operating System = Windows XP version 5.1 running on x86
Java; VM; Vendor = 1.6.0_20
Runtime = Java HotSpot(TM) Client VM 16.3-b01
In this version of IDE the code folds not works as before, put mouse in the fold BOX it only display an empty box with line number, all the source code in the block not display on screen.
*** This bug has been marked as a duplicate of bug 189233 ***