Having installed the now legendary patch.....I actually went into the Forgotten Battles directory and read the READ ME Version 1.1b
QUOTE in first 3 lines
"NB: Note to ATI users
We strongly recommend using ATI Catalyst 3.4 Driver, because versions 3.5 and 3.6 may cause lock-ups in Perfect Mode. This problem may be solved with the next version (3.7) of the ATI drivers.
Now I'm on 3.6.....so lots of you prob are too.
DOH