Try suggestions above and see if they help. Below are the same steps, just in simpler terms if you're not sure above .
1. Can you double check the card, check the connections behind and see where the monitor is hooked up to (your board or card).
2. Also can you take out the card and resit it back? Make sure all connections are in place (like the power connector for your GFX card).
I'll try these...I'm off to bed for now, have to get up in the morning. I wasn't expecting so much help so fast, I posted thinking I'd check in the morning...thanks though, I'll post back with what I can find out.