Your gateway says CD-rom boot priority no medium what should you do?

what it means is on startup of your computer the first thing your computer looks at is the CD ROM if there is no CD in the ROM drive it will then go to either floppy disc if you have one ,or read off your hard drive and Windows should start up.

all this info is put into your biOS on the first time setup.

Okay, I understand that but it will not boot … it stay at "CD-Rom Boot Priority .. No Medium Reboot and select proper boot drive" what do I select? 1…2…3…