Since running Acrobat Pro 8 in win7Homex32 was a complete pile of old lady's wee-wee, I've decided to resort to Plan B and remove the 120GB SSD from my Win7Ultx64 laptop and put the 500GB WD Scorpio Black back in.
Once that's done I can run these in XP emulation mode (with 8GB RAM). Then, if it still doesn't work, I'll just have to resort to some jolly harsh language.
I'll be back...
Probably.