Hi Wayne. Welcome to the forum.
Rather than asking on a sticky, you will get more help if you post a new thead. Go to this page
http://www.cornsnakes.com/forums/forumdisplay.php?f=8
and click on the "New Thread" button. It's blue, above the posts and below the ads on the left side.
Then give us some more details. Is this a new baby that has never eaten? Is this an older snake? Is this a frozen thawed or freshly killed mouse? All the information you can give will help get good answers.