hi, i have the follow hardware which i cannot get to mine properly

Gigabyte GA-890FXA-UD7
4GB corsair ram
Phenom II X6 1100T
xfx 5870 (4 of)
1200W antec PSU

what i want to do is run 4 cards in one PC and overclock them to 1.25V 1030/300

currently using windows 7 ult 64bit with m0mchils GUI miner

when i put 1 card in it works fine
when i put 2 cards in it works fine
when i put 3 cards in windows reconises them in device manager and crossfire works but the miner only sees 1 card.
when i put 4 cards in windows recoinises 3 of them in device manager and crossfire only allows me to use 2 way, not sure how many cards the miner allows me to use, either 1 or 2.

so that is my main problem, 4 way crossfire isnt working and m0mchils miner isnt working with more than 2 cards.

things i have thought/tried:

all the pci-e slots work, have tried just one card in them all.
all the cards work, they are all mining now just not in one computer.
the psu has plenty of power, it is gold rated and has 8x 30A 12V rails.

another problem i am having is i cant overclock more than one card past 900Mhz, using MSI afterburn to overvolt and AMD gpu clock tool to take the clocks to 1030/300 but it only lets me do it on one card, the other always runs at 900/1300.

if anyone can help me get it working like i want it to, 4 cards in one computers overclocked then i will throw some bitcoins your way.

i am prepared to use other miners or another OS but you may have to be a bit patient as i have never used anything other than windows.