I can't "move to trash" any file

Hi there!
When I try to “Move to Trash” any file, a message say that Dolphin can’t move the file to trash because it’s full, but trash is empty.
Can anybody help me?
I’m running openSuse 11.4.

Note: I think this function (Move to Trash) was working fine this morning. What it happened?.. Maybe “Move to Trash” files in a pen drive was the cause of the problem.

Thank you in advance.

I just find the solution to the problem:
I set ‘Size=0’ in /home/user/.local/share/Trash/metadata file.
Thank you, anyway.