Unable to find or create trash directory

[T1125P]

I keep getting this error now in v1.0.6 I'm trying to delete files off my USB stick, it's formatted with the exFAT file system. If I hold down SHIFT+DEL the error comes up but the file is gone. Is there a way to fix this?
Another thing, how to disable automount, I don't want to have my USB stick or eternal harddrive opening the contents as soon as it's plugged in.

Thanks.