Reply to Problems loading S4 Software on Vista

Hopefully someone can help....

First venture from CDs to digital with the S4 purchased on the weekend. Tried loading the software on my older Toshiba Satellite A200 (Core2Duo, 2GB RAM) before I can afford a new mac.

I have disabled UAC on Vista 32-bit and Anti-virus, yet when I run as administrator it goes through and loads on service centre and Controller Editor and then I get an error message saying "Could not access network location \Native Instruments."

I click Cancel and it then finishes running and provides error message with "Fatal error during installation".

I have not had this issue with any other (non-dj) software before. Has anyone seen this before and know how to get around this?