You can sort by most of the columns in the register by just clicking the column heading. Also you can sort by Order Entered, which is handy when doing a lot of entries. While in a register, click on "Account Actions", select "Sorting Options", select "by order entered" should get you what you are looking for. Or for earlier versions click Options at the top of the register on the right side. If you sort by anything other than the Date column you might not get a true running balance. So after you sort and look around be sure to sort it back by the Date.