Need help for replacement interface

[Cal D]

I have long used Pro Tools 8.05 M Powered with my M-AudioFast Track Ultra.

The Fast track is behaving erractically now, probably because the support for it is gone.

I recently bought the Steinberg UR44 as a replacement , and had forgotten that my version of Pro Tools needs a M-Audio product or it won't work. When I uninstalled the drivers for the Fast Track and Installed the Steinberg instead, Pro Tools told me it could not find my hardware and refused to start.

Does anyone have any advise as to what hardware product I can but to replace the Fast Track Ultra and stll work with pro Tools M powered? I'd hate to have to buy a new version of Pro Tools and a new hardware product., so I am trying to find a hardwatre product that would work with Pro tools M powered.

Thank-you