Just in case anyone else is using a certain electronic workshop manual with Windows XP, don't upgrade to Service Pack 3 just yet. The current version stops the workshop manual from working. I had to do a System Restore back to prior to SP3 before it would work again.
I understand a further modified version of SP3 is due out that may well solve the problem.
I understand a further modified version of SP3 is due out that may well solve the problem.