2nd Monitor "seems to be screwing thing up"

[edgeria]

So like the title says. I got a second monitor "Asus VW246H" and ever since I switched to the new dual Asus VW246H monitors from my old temp dual setup with a hp17" and just one Asus VW246H. Seems like I get more firefox crashes while trying to watch youtube etc. and it takes forever for the sound properties to load from when you right the speaker (task-bar) and change the inputs from my g35 to monitor speakers. Sometimes it won't even load. Yeah its strange. Any idea's?? please help

New system was just built so the drivers- OS updates-bios- are all up to date.
2600k stock.
Asus Maximus IV extreme-z
16gb gskill 1600
crucial m4 128 raid-o for OS
3 1.5TB WD blacks Storage/Games
500gb WD Blue Old Storage.

 

[edgeria]

OK so I switched the one cable from HDMI to DVI. And now both monitors are Connected -Via- DVI.. Also I have Alil More Info the Gpu's are Gtx580's in sli. And I am using the onboard Motherboard sound to number one monitor via the "little green jack" sorry don't know what it is called.

The sound properties are loading now. Just way to slower then before.