Hi tosca925, I hate to resurrect an old thread from the dead BUT believe it or not - I have been asked to install this on our 2008R2/Win7 network! I have exactly the same error run-time error 75 but only when I run it as a student - I have given students full control of the folder where Maths in Motion has been installed. The phone number on the paperwork for this software is not recognised.
Any help would be muchly appreciated!!