Internet Connection Sharing (ICS) HELP!

Hey guys ive been working on this for a while but can’t figure it out. Im trying to turn on Internet Connection Sharing on my laptop that has wireless internet. When i right click on the connection and go to properties-sharing and click on the box to enable ICS it gives me the error message “An error occured while Internet Connection Sharing was being enabled.” Since this doesnt work i tried to go to RUN-SERVICES and enable it from there but when i click start it tell me that “The internet connection sharing (ICS) service on Local Computer started and then stopped. Some services stop automatically if they are not in use by other services or programs.” Anyone have a clue as to what is wrong here and why i can’t turn it on? Thanks!