help with mining ltc 7990

[frojoe]

Trying to help someone set up there 7990 for ltc mining
 Usingimg cgminer the newest and newest drivers and cgminer crashes instantly.  Any idea on the issue? Tried going to an older cgminer. Think drivers are the issue?  It wont just fire up with no special flags in the .bat or anything. Definitely not like my 7970s. What am I missing?