Updating grouped ContentControls in Word 2010

[MGerhard]

Hi @ll,
I am havon some trouble with an automatically generated Word document:
A 3rd-Level-Software generates a vbs-file including some variables. This vbs-file creates (in combination with a Word Template) a
new Word document and implements the variables. This is working fine. The values of the variables should be shown in several grouped
Textboxes (ContentControls).
In Word 2007 this also worked fine. But in Word 2010 (14.0.7116.5000 - 32Bit) the .Fields.Update command does not have an affect.
The value in the Textbox is still the default value, not the value from the variable.
When I am changing into Design Mode I can manually choose "Update fields" in the context menu of the field. But mos of the users do
not have the access rights to use the Desing Mode so this way is not available.
The Word Template can not be changed. My only access point is the vbs-file.
Does anybody have an idea how to handle this issue?
With hope and best wishes,
Markus