help with g450 dual head card

[vern3010]

i can not get the second monitor to work here is some info

p4 2.4 800mgh
asus p4800 board
1 gig dual 512 ddr 333 ram
80 gig max hd
p650 matrox agp dual dvi video (master )
g450 matrox pci dvi / analog secondary video
4@ dell 17 " dual input lcd monitors

i can get 3 monitors all on the digital to work can not get the analong output on the g450 to work.