All the 310* drivers has been pure shit, and these are no exception. In SLI mode /w XCOM there are no cover shields for objects, also there are missing menu's in the research/engineering parts as well. Also in another Firaxis game Civ5, there are random crashes /w SLI, only disabling SLI fixes these issues. This has been going on for all the 310.* releases with nvidia ignoring and deleting my posts about them in their forums.