> If the graphics screen is 128x64, that equates to 128 bytes. 1000 plus > bytes is probably wreaking havoc. *8, i.e. 1024 - there are 8 bits to a byte, not 64 ... --=20 Scanned by iCritical. --=20 http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .