I can't boot with USB flash drive.  I used the HP utility and dos boot files to create a dos boot disk to my usb flash drive and I set the flash drive to first boot device in my bios, but after I exit the bios it tells me something like to restart my pc or insert boot media into boot device. 
 
I have an M4N72-E if that makes any difference.
 
What could I be doing wrong?
Here's where I got the directions and files:
http://www.bay-wolf.com/usbmemstick.htm
			
			I have an M4N72-E if that makes any difference.
What could I be doing wrong?
Here's where I got the directions and files:
http://www.bay-wolf.com/usbmemstick.htm
				
		
			