I have installed Ubuntu 12.04 several times, and during installation sometimes the version 304 Nvidia driver gets installed sometimes the version 173. I checked the integrity of the DVD, of course. I'm just asking if it could cause some kind problem or not, should I be worried, or calm? hehehe
you should be calm. The 300 series drivers are the current stable version, the 173 is the older one. it will work with both, but ofc it's better the use the stable newer one... I would like to know which version is installed now.