Hello everybody,

i just bought an ati x1950xtx crossfire edition (master) to set-up a crossfire with my other sapphire x1950xtx crossfire ready

i can't do that, i'm not able at all.
Windows can see both cards (crossfire is enabled on mobo bios) but i can't even activate the crossfire option on Catalyst Control Center

i put the master on the first PCIe slot (16x) and the "slave" in the second one (4), i plugged the "Y" cable (dongle?) but i can't see anything in my monitor (i also tried to switch cards between the PCIe slots, or change the connection fo the "Y" cable but nothing seems to help me)

Do anybody of you know where i can find a detailed guide to set-up a crossfire? even ATI website havent been useful

my system is:
mobo: asus commando
4x1gb ddr2 corsair xms2 pc6400
intel core 2 duo e6600
ati radeon x1950xtx crossfire edition (master)
sapphire radeon x1950xtx crossfire ready
windows vista 64



many thanks in advance!