Ok, so bit of a saga.
Windows 10, ATI Radeon HD 5450, HP SFF Core 2 Duo 5400.
I had it set up at one stage. CRT Emudriver had found the card and installed. It was getting late that evening so I left the PC on and plugged into the network (silly me!!)
When I got back to the PC the next day it was boot looping with BSODs. To get the PC up and running again I had to remove the AMD card and return to using the onboard video. I then completely removed the AMD drivers using the AMD display driver cleaner utility.
No it seems there's something in my config that is preventing CRT Emudriver Setup program from finding my AMD Radeon HD 5450. There are never any devices listed in the box when I run CRT Emudriver Setup. If I try and manually install the driver from Driver Update/Have Disk/Show List I cannot find anything for the AMD Radeon HD 5450 in the list.
I've given up bashing my head against a brick wall. I know I could possibly reinstall Windows but that's a massive pain.
Any help appreciated.