Thanks Sunny, It is not just me that is seeing this then.
What i am trying to do is use the now() function in a dimension to create a distinct key (this is used in an extension object that allows me to create a 'comment' which is then written to xml. the xml is then loaded into the data model, so each 'comment' entry must have a unique key). The now() function would have been perfect for this, but obviously if it does not work like it does in QV then i need to find another way.
The dimension i am using is this..
='Sheet1 - ' & timestamp(now())
Does anyone know how else i can create a unique key by using a calculated dimension? This is not possible to do in the script as it's the extension object that outputs to xml.