Files that are dragged into trash disappear?

I had this problem recently on my macbook air, not involving the trash but if I moved or created a file anywhere it wouldn't show up in finder, but I could see them in terminal.
I had to use disk utility to repair disk permissions and that fixed it, all the files I copied/created showed up again after a restart.

 

Yeah they get deleted.

 

Do you have a Time Machine backup?

 

"When I drag them to trash, they just disappear."

I've seen a similar problem myself, that being, when a file is placed in the trash, the finder would throw up a warning saying that the file would be "deleted immediately".

I believe this has _something_ to do with accounts and permissions.

Have you tried repairing permissions (via Disk Utility) to see if that would help?

 

Were the files you dragged into the trash located on a networked server, or were they saved on your local hard drive? If they were on a server, then it would make sense that the files would disappear, along with the warning:

"This item will be deleted immediately. You can’t undo this action."

This is simply the way OS X handles moving networked files to the trash. If this is the case, your files are gone and you are out of luck.

 

In your Finder > Preferences > Advanced is Empty Trash Securely checked or not checked?