After a "blue screen experience" on my hard drive for no known reason after working well for some months I have been on the road to discovery for some hours and have found an issue that after FIVE resets and re-installs of Snow Leopard I need to share . . .just in case others have an issue . . . .
Simply put, I could not get any of the Adobe Master Collection CS5.5 apps to recognise fonts activated in FontAgent Pro 6 the solution came by going back to FAP 4.2 and all has worked out well.
This maybe useless for some or helpful for others, but I am happy now . . .until the next time . . though to be fair in 26 years working with Macs I have only ever had two drives go.