connecting a Display card

Hi guy's,
i'm having a bit of trouble getting the digits to display. I have connected the display card to the expansion card & placed the jumper in2 the 1st postion. I have then connected the digits to the card. but nothing happens. I have had these cards working b4. What am i missing????


Thanks

problm solved

What was the problem?

1 of the pwr cables came out!!!

Its always the obvious that we never check