Vga lead nd computer

Hi,

I’ve recentley got my computer, and i’ve plugged in the VGA lead for the moniter into the graphics card, on the back and nothings coming up on the moniter, also i’ve plugged it into the motherboard port, as well, still nothing.

I’ve plugged the moniter into my other pc, and it works fine.
any help would be greatly aprecated

Regards,

Corey x