Forbidden file extension error when editing photos

[macsimoin]

Having a new problem with CPG but I can't seem to find out how to fix this one. I've found other posts here relating to "'Forbidden file extension" errors, but I can't seem to find any that are exactly like the problem I'm now having.

The issue is this: When I try to edit a previously uploaded file (description, for example) and click the "Apply Modifications" button, I get the extension error. Odd thing is, the information that was just edited appears as it should under the photo.

I don't know where this is coming from (never happened before today); I have file types set to "ALL" in Config and I've made no changes to permissions.

What is going on?

[macsimoin]

I think this may have been a white space issue: I uploaded a 'clean' version of the editOnepic.php file (the one I was using had been modified for appearance) and the error's gone away.

SOLVED. Thanks.