Paste Link from Embeded Exel

Hi, I have created an excel spreadsheet on slide 2 of a powepoint
presentation using 'Insert-Object-Microsoft Excel Worksheet'. What i hope to
do is copy some specific cells linked from the embeded spreadsheet back onto
slide 1. This would therefore see the copied cells on slide 1 change whenever
the figures do in the embeded excel spreadsheet on slide 2.

I have tried various different things but nothing seems to work. I can copy
the cell out of excel onto powerpoint but when i try to 'update link', it
fails.

Is this possible? An ideas?

Thanks,