Hi Craig,

Sorry I ruined your sleep and made you waking way beyound your bedtime. (you can apologize you wife on my behalf)

Actually the code I sent you is just a little modified copy of the real code in which I have bypassed the compare sub routine to see whether it was the reason.

Rest of the code is exactly the same

I shall mail you the original copy in which compare is also used also send you an explanation note on every part of the code.

Its still a mystery as to why it is crashing whereas I don't see a reason for crashing.

Regards

Simon