BI 7.10: Using SAPBExRefresh in workbook

Hello,

we like to extend a workbook with VB code. That means users shouldn't use BEx menu bar to refresh the workbook. they should get a button in the workbook, which starts function SAPBExRefresh. The workbook is created with BI 7.10. If we execute workbook with BEx Analyzer BW 3.5, function refresh works fine and variable screen will open. If we execute workbook with BEx Analyzer BI 7.10, function "refresh" doesn't work correctly and no variable screen will open. Does someone know what the problem could be? Are there any selection to do in the query/workbook?

Many thanks for your help.

Regards

Friedrich