To answer your question, if it was a graphic card issue you would hear beeps (long beep + 2 short beeps) or 1 long beep + 3 short beeps depending on your setup.
What motherboard brand / model is it ?
Did you handle it carefuly ? Static is a killer - you probably mishanled the board (breaking or shorting something) or you had static and touched the wrong area.
BTW, depending on your motherboard, you may have speech post reporter, so if that was a default you wouldn'T hear any beeps (that is usually on some older asus boards).
You said you cleared the CMOS, and assuming nothing is shorting or you haven't mishandled etc - then it looks like you have a dead board. While it's on and no display, try pressing RESET twice in a quick fashion - anything ? I've actually revived an old asus board this way -
DId you do anything unusual prior to removing the motherboard or BIOS flashing etc ?
As far as the antistatic bag I think he means the original bag that contains the motherboard - (transparant) and that one is non conductive although I would use a hard surace (that cardboard that comes in the box for example). The conductive ones are the shiny ones used for hard disks, graphic cards, etc. I know my asus boards all use the transparant bag.