I tried the backup module last night in 1.2. My cron job emailed me a long message, with each course ending with "ERROR!!"
23:30:09 copying user files
23:30:09 copying course files
23:30:10 zipping files
23:30:11 copying backup
23:30:11 End backup course Algebra 1X - Haynes - ERROR!!
Is this a permissions problem? The backup runs as what user?