Originally Posted by Bretai2k

It still does not appear to be working. It could simply be that I am not asking the correct question. I'm sorry, I should have added the spreadsheet in question from the get go and here it is. Basically I want to select an option for Sheet2 A2 (sorry my sheets are named backwards), also select an option for Sheet2 B2, then have a function that looks at A2 and B2 on Sheet 2, then uses A2 as it's start point, and B2 as it's end point for giving a SUM of every item in the list in Sheet 1 B3 through B78, and give me the result.

Hope this helps you help me :D.

Again, thank you for all of your help on this.