Hi, Help please..... I restored an Acronis TrueImage backup of a WIn2003 Server to a PC with two internal hard-drives (one of which had XP Pro). Changed the boot priority to use the restored 2003 drive and the PC booted up perfectly. Great! Then I wanted to see if I could restore the same image to an external USB drive and boot from my Vista Business laptop. I changed the boot option on my laptop to boot from USB. The Win2003 splash screen appears but then it blue screens. I tried a bunch of stuff with boot.ini and the other system files (can't remember all their names.....hal.dll, ntdoskrnl, ntdlr etc....) but no joy. Has anyone ever done something like this? The main difference I see is that, in the working version, the two drives are Master and Slave (can be seen in Acronis). Whereas the USB version has the laptop as Master but the USB is not a slave (visible and I could restore to it, but not a slave). Is 'slave' vital? Any ideas, Thanks.