Problem emptying Trash
I've got a 2008 Macbook currently running Mountain Lion OS. I can move files to trash but delete and secure delete don't function. Whenever I try either method, I get the scrunchy paper sound effect, the window displaying the contents of the trash can disappears, however if I reopen the trashcan all the items remain there.
When I was running Leopard and Snow Leopard I had the same problem - no idea why it started, or how to solve it - but I used an app called Trash It which seemed to work.
When I installed Mountain Lion, my trash emptied as normal for a while, then the problem started again. Trash It worked again for a while, but now even Trash It fails to shift unwanted trash.
Any ideas:
What might be causing this issue?
How I can fix it?
Another app which might resolve it?
Many thanks in advance.
OS X Mountain Lion (10.8.2)