Quick reply before I head for bed 'cos I have been struggling with these all evening.
I have tried the disks on 3 machines all running WinXP home - same result on all. All the machines are networked and behing a router firewall plus McAfee firewall and virus scan. I did try removing the Internet contact and then disabling the firewalls - no effect.
I have cleaned the disks - carefully.
However, I also then tried them on a machine using win 98 - and they more or less work ok (not the DVD of course because that machine does not support DVDs). When I say *more or less* I think the issues are just screen resolution and I will sort that out tomorrow. Three of them ran fine on Win 98 it is just one that needs tweeking.
Reading Google again it seems that this sysfader.exe is a real PAIN - but nobody seems to know exactly what it does.
The Forum search facility has come back on - but no hits for sysfader
I will see what I can sort out tomorrow - but any hints gratefully received