Thanks for your response. I intend getting - I hope - "A really cheap but good upgrade of the OS", but I think it will probably cause more incompatibilities than the move to Intel and Leopard. However, as it will be the even cheaper "Snow Leopard Up-to Date Program", I guess there's nothing to lose by giving it a try.
See, I'm getting a bit nonchalant about all this updating/upgrading stuff.
Actually, I'm not, as I will be taking it all gradually and steadily.
I'm still in a state of shock and exhaustion from my recent trials and tribulations, which would undoubtedly have been greater but for the help and support received from FTM.
Anyway, thanks again. Regards. Mike
