No drives to Back-Up

Hi,

I'm using SSR2011 and on one machine with ESATA-Drive SSR2011 does not show any drive that can be backed up.

According to http://www.symantec.com/business/support/index?pag... I would like to remove the extended partition, but in Windows Disk Management no extended partition is shown.

Any idea how to fix this problem?

Thx

Update:

Removed extended partition with Partition Manager. But still no drives to backup. :-(