I complete a full instalation of Inventor 2013 without errors, but when I enter into the design environment pan and camera mouse interactions aren't functioning correctly, as well as drop down menu options do not execute in any way?
Not a supported O/S at this time with Inventor 13. There are some instances of people having luck as well as problems with 2013 on Win8
IV2014.1 PDSU / Sim Mech 2014 /
EVGA X79 - Classified, iCore7 3930k 32Gb Quad-Channel
950Gb (2 x 500Gb Sata III SSD RAID0 Adaptec 6805E Controller)
Nvidia GTX-690 Classified - 314.07
SpacePilot Pro 3.16.1 / 6.16.0 / 4.11
This is the link for update 1 of SP1 for Inventor 2013, which you will need for stable (but unofficial) support of Windows 8
I hope that this helps.