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jdk-1.5 (maybe <=1.4 as well) linux (gnome and KDE) all netbeans versions/builds the root cause of this problem is actually a JDK bug, but the problem needs to be addressed in netbeans until it is fixed there: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=5076635 this problem affects many distributions of gnome and KDE. the problem is, the default double-click speed in the JVM is too fast for laptop touchpads to handle, so it is impossible to double-click anything in netbeans (or any java program). if you're lucky you can manage to double-click with the left button if you have them and they're enabled, but it's very difficult. either the netbeans double-click speed should be changed to something more reasonable or (much better) a command-line switch should be added. the JDK bug above describes a workaround allowing apps to set the double-click speed. IMHO, this should be backported to all maintained releases because it is a MAJOR (perceived) usablility problem with netbeans.
it works for me on NB4.2(200505181800), JDK1.5.0_03, Linux RH9/Gnome 2
i forgot to mention that some components (like trees) seem to set their own double-click timing as a workaround. try double-clicking a word in the editor or a directory/file in the file chooser.
are you sure setting the double-click speed in the gnome menu is actually changing the double-click speed in netbeans? i am using gnome 2.8.3 on gentoo and it doesn't work here...
also i think how gnome stores its settings may have changed since such an old version of gnome. what entry describes it in the configuration editor?
there doesn't seem to be any problem with other distributions, so i believe this is a problem with the jdk install on gentoo.
Are we going to implement some kind of switch as suggested?? If not, might be better to mark as WONTFIX, since it seem to be problem of Gentoo linux.