I did Louis, even though it said pressing Enter would cancel.
Anyway, here is the latest installment of the saga...
After leaving it on RC for over an hour, I turned the computer on and off again and, to my surprise, the Win XP installation came up and loaded successfully. Once things were set up, I changed my resolution back to 1024 x 768, logged onto msconfig and enabled all my startup items and plugged in my USB modem.
Anyway, I tried to restart and the same problem returned. It hung on a black screen after the XP startup logo.
So, I went into Safe Mode and undid everything I had just done, changed the resolution to 800 x 600 and unplugged the modem...
Restarted into normal mode - my res is 1024 x 768 and startup progs were running. Just going to try and plug my modem in now and see what happens.
One thing I have noticed is that it takes an absolute age to load up the login screen.
If there are any further devlopments I'll report back