I am running Mac OS X 10.6.3 on a 2008 Macbook Pro Unibody. When I try to delete a file by dragging it to the trash, nothing happens. When I right click on a file and click "Move to Trash," a message pops up, see screenshot. Does anyone know how to fix this? I think that it is a permissions problem, but I ran Repair Permissions several times and it did not fix the problem. A short time before this I ran OnyX and Clean My Mac, along with Xslimmer as part of my monthly maintenance. Any ideas? Thanks.