I recently installed the trial version of Acronis True Image 9.1 Enterprise Server on my W2K3 R2 Domain Controller - this is in a small office environment. I experienced problems trying to install the Backup Server (as many others have reported here) and failed to get it working at all. The error is: The installation was interrupted before Acronis True Image Enterprise Server could be installed. You need to restart the installer to try again. I tried the steps outlined here: https://www.wilderssecurity.com/showthread.php?t=143386&highlight=backup server But still no luck. I tried the install in various ways many times. Finally gave up, uninstalled the other Acronis programs and rebooted the machine. Before I did this, I noticed that the Backup Server install had put a Backup Service in place which obviously didn't exist. I disabled this. On rebooting, the server hung at the point where it starts loading device drivers (I think) and continuously looped (just after loading ACPITABL.DAT). I couldn't do a safe mode, directory restore etc - had to boot using recovery mode and had a look at the drivers list but couldn't find anything obvious. At this point, my server was completely screwed and I had to do a re-install over the top. This was OK for a while but I then started experiencing severe crashes aevery 2-3 hours (no BSOD - just a power off!). I finally had to completely install the server from scratch and restore AD, exchange etc - BUT NO DODGY ACRONIS software Server working fine again for the last 2-3 days. This whole episode has left me with a very bad taste in the mouth about Acronis s/w - which is a real shame as I really liked the look and functionality of it. Acronis support - I'd really appreciate some feedback on why the install of Backup Server does not work (and whether you've fixed this for anyone else). I'd also like to know why it fails in such a poor way and why the server then crashed on booting. Just to mention my setup: W2K3 R2 Server with all updates Exchange Server 2003 standard SP2 Most services running - IIS, AD domain controller, WINS, DHCP etc Boot drives - mirrored WD RE SATAII 160Gb drives Data drives - RAID5 array of 5 x WD RE2 SATAII 500Gb drives RAID controller - 3ware 9590 SE PCI-Express (x4) controller Thanks.