I've been defining my own lables and making their memory address "Saferam2" and "Saferam2 + 1", and "Saferam2 +3", all the way up to five... however saferam2 + 5... must not be safe... it accesses a part of the memory for installing new TI-OS software or something. So, what memory addresses should I use rather than that. I am using ION, thanks.