Please describe the problem:
in the project window, clicking on the black triangles next to the project targets in the project browser widger sometimes doesn't have any effect (you'd expect to see the files within that target appear in the list).  Same in the file manager window.




Steps to reproduce:
1. open a project
2. click on a black triangle in the project browser
3. 


Actual results:
sometimes, nothing.

Expected results:
expand or collapse the subtree.

Does this happen every time?
restarting anjuta completely sometimes solves it, sometimes not.

Other information:
status of the problem seems to be set at startup, then either it always works or never works, until the next restart.

It's less important in the file manager, since double clicking a folder has the required effect.  I don't know a work-around for the project browser.