In a message dated 98-05-24 03:38:36 EDT, you write: << I got some interesting results by varying the height: StoPic pict,0,1,0,100 RplcPic pict,0,0 that gave me a neat barcode pattern on the graph screen...didn't crash the calc, but possibly corrupted memory...(haven't checked yet) >> That "barcode pattern"...the same thing happened on my 86 when l ran an asm program once.