Soemtimes the "settings" of netbeans gets
corrupted and after this I'm not able to build,
compile or do anything with the project. 

Steps:
1. create a project with custom ant script and
configure it.
2. Work on the project, includeing building it
3. restart Netbeans,

Expected result:
I should be able to continue working on the project.

Actual result: 
I cannot build,compile or anything that involves
my ant script. NB claims it is not a valid ant script.

Workaround:
Closing netbeans and deleteing the settings
directory (.netbeans/dev). After this I can
recreate the projects and everything works.

I am unsure what triggers it.

Sometimes it occurs after I have restarted
netbeans because of some exception, but I don't
think that is needed.

Running jdk 1.5 beta 2,netbeans 4.0 daily
(24/6),amd 64.