Urgent: Text modification crashes

Hi!

I'd like to create a text object that shows the x-coordinate of an object.

I assigned a position script that sets the text property every frame:

	$Text01.text = $foo.pos.x as string

This works just fine - until I assign an UVW Map or Extrude modificator 
to the text. When I try to render, one frame renders fine and then 
3dsmax crashes. Without the modificator the scene renders fine (except 
that the text is not visible).

This happens both in 3dsmax5 as well as in the 3dsmax9 trial version.

Thanks for your quick help, as this is the last problem in a project 
which I have to deliver by tomorrow :-)