Prompt values getting wrongly copied into prompts below

Hi,

We are executing a BEx report in Business Objects Advanced Analysis 4.0. It runs fine for the first time. When we save it as a workbook and open it again the values in the prompts entered earlier get copied to the text boxes for the prompts below.

The report is developed in BI 7.1 version. This issue occurs with all the reports in the system. We have tried this with Excel 2003, 2007 and 2010 and it occurs for all these versions. 

For eg: We run a report with Division as 30 & Region and Sales Manager as blank and save it as a workbook. On opening the workbook, the value for division (30) gets copied to Region and the Sales Manager. So it shows 30 for all the three the prompts.

Please suggest.

Thanks in advance.