In Spreadsheet Y, I want to include data from cells A1..C3 in spreadsheet X,
which will be updated if X changes.

In Excel 2000, this was easy: open both spreadsheets, go into Y!A1, type "="
then flip to X, click in A1 - now I've got the external reference. Go back to
Y, edit A1 to remove the $ signs (so the field address varies when copied),
copy this field to A1..C3, and hey presto, it all works.

I've tried this in Excel2003 and as soon as I edit the external address, it
thinks it's a text string rather than a formula, and won't return a value.
How can I do this (simply please - no programming), preferably in a way that
will work if I save the spreadsheet back to Excel 2000?

Thanks
Gary