Do you've any calculated fields in your view which size could change from record to record?

>Hi,
>
>I have a view created with View designer with WHERE clause like
>... Where customerid=?pncustid
>
>Problem is:
>
>pncustid=1 && for example
>open database test
>use my_view
>requery()
>browse && till here everything is OK
>
>pncustid=2 && change parameter value
>requery()
>
>end VFP8 generates "View definition has been changed (Error 1494)".
>
>What is happening ??? I just change parameter for where clause to create new subset...
>
>Thanks