Seems like a lot of people are having trouble finding 89s. Try this page: http://www.calculatorsinc.com/ti/ti89.htm When you want to order, you have to call "1-800-533-9921 to use your Discover, Visa, or MasterCard." Good luck, Xaos 80 97 116 114 105 99 107 32 77 99 71 105 110 110