Hi Andrew,

There is a list of known problems with Range.calculate at
http://www.decisionModels.com/calcsecretsg.htm

You probably have hit one of these


regards
Charles
______________________
Decision Models
FastExcel 2.1 now available
www.DecisionModels.com


"Ajtb" wrote in message
...
Hi
I experienced an unusual problem with this instruction below. It worked
fine on two computer systems but came up with
The calculation method failed, run time error '1004' on a third system,
running the latest version of Excel.

Sheets("Data").Range("A58:AF59").Calculate

Events are turned off and the range only contains simple formulas.

Any ideas ?

TIA

Andrew Bourke