After losing and finding my calculator, the buttons now no longer function normally. I'm not sure whether the problem is hardware or software, as someone might have messed with it, or it could have been dropped. For example, the 7 button will display and "a" character, the 8 displays log, etc. I'm not sure what the root of this problem is, but it seems to be hardware as I have already reset/reinstalled the software multiple times. I have heard that I can hack my nspire to allow it to remap buttons, but I'm not sure if thats what im looking for. Any help is appreciated!