I've just tested reproduce the problem on the third PC (complete new all english install) and finally got positive result!!!
The list of software used on success attempt:
Win7 64 bit Corporate edition (all updates installed)
Vault PRO 2013 SP1 (client)
AutoCAD Electrical 2013 SP1
Inventor PRO 2012 SP2 update 1
AutoCAD Mechanical 2012 SP2