How do I check to see if there is 1024 bytes of memory free on the calculator? I understand how to do a 16-bit check, but the data returned from _MEMCHK is 24-bit. Someone help me, please! :) ----- Stuntman (Nathan Haines) - ICQ UIN#: 2157863 http://table.jps.net/~stuntman/nathan.html QuickBASIC/Visual BASIC/TI-BASIC programmer (just your basic programmer) President of Stuntworks - http://www.jps.net/stuntman/