access privelages issues in PSE6 on OS-x

HI

I recently changed to Mac OS-x and downloaded PSE6 which has been working fine.
However, I worked on a file today and went to save it and got the following
error:
'...could not save as you do not have the necessary access privelages'
I thought it might have been access settings on the drive ( I checked drive
settings and all seems fine and dandy) but can save other types of files to this
drive without any issues (Pages files etc.).

I have a a copy of PSE4 loaded on my pc for back up purposes and to facilitate
lots of 'actions' I purchased (and have yet to figure out where to store and get
working on PSE6) - anyways I get the same error when trying to save a file in
pse4 too.

Any ideas?
Cheers

Well, that doesn't tell very much. There are certain places on your hard drive
where you don't have write privileges. Was this a folder in your documents or
someplace like that?