Medal of Honor and ATI Crossfire Issues. Thoughts?

First off, I'll start by saying I just got a new computer about 3 days ago. Previous to this I was playing MOH on my old Asus Crossfire board, a single core 2.0ghz AMD and 3gb of DDR1 RAM and a single PCIe slot ATI Radeon HD3870 X2 card.

Crossfire mode WORKED. I got a little sick of the lag so I ordered some new parts from Newegg.

Got a new Asus M4A88TD-M/USB3 motherboard. New multi-core CPU, and 6GB of Crucial Balistix DDR3.

Computer runs GREAT, however when I use this same ATI HD3870 X2 on this new setup, in Crossfire mode, MOH will not start. I only get a black screen.

I thought something was wrong with the computer so I tried COD MW2, works 100% in CF model. Tried MOH again, nothing. Then tried to disable CF mode in the CCC and now MOH plays 100%. Turn CF back on, black screens again.

Newest official ATI drivers. Newest Asus bios...

Thoughts?

Gornot said:

Which MOH? There are 4 games for the PC platform.

I think he means "Medal of Honor".
The latest game in the series that is based in Afghanistan and was recently just released.

Sorry guys, I just assumed people would know I mean Medal of Honor, the NEW one.

Anyhoo Crossfire on my Radeon HD3870 X2 WORKED on this same card with MOH the day before I upgraded my motherboard, CPU and RAM.

Crossfire seems to still be working though, like I said it's working 100% on Call of Duty, Modern Warfare 2. I'm stumped at to why it stopped working on MOH. I mean the game plays "OK" in full detail but I notice a little lag from time to time, lag I probably would not have IF Crossfire was working.

Drivers up to date?

A 3 day old pc could have very old drivers installed