Document versions not working


#1

When checking the 2 document version I want to see - I receive this error:

unable to open file `/local/htdocs/pimcorebasic.local/var/tmp/version-diff-tmp-5c5a1f09b0192.png' @ error/png.c/ReadPNGImage/3733

Everything seems installed correctly and the permissions on the files are wide open. Have never gotten this feature to work.