Perhaps a permission issue. The disks in my core have been in use since 8.10. After installation of 12.04, I had some problems accessing with my credentials. Could you tell me, what the correct ownership and permissions are?
Rule #1 - Be Patient - Rule #2 - Don't ask when, if you don't contribute - Rule #3 - You have coding skills - LinuxMCE's small brother is available: http://www.agocontrol.com
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