Don't know why I haven’t thought of this before but I just downloaded a timer for my pc to remind me to check my cook.
I just grabbed a real simple one requiring no install and it is feature light, but just what I needed. I tend to lose track of time at the computer.
Here is a link to the freeware I downloaded.
http://download.cnet.com/Cook-Timer/3000-2056_4-10696217.html?tag=mncol
What dose everyone else here use?