In message <000001c39fd2$bcaa1ec0$8f192052@xygax> Steve Smith wrote: > Take the contrast up to about 0.7v (vcc- 10k-contrast pin-1k0pot-0v) > that'll work usually What bugs me is that it displayed the cursor (solid black square) for about half a second, then the display went blank. I'll try your suggestion, but I don't think it'll help. At this point, I'm guessing that my code isn't waiting long enough for something, thus causing the display to get confused. The Samsung KS0066: Pure evil in a QFP package. Still, at least the three LCD1003 (16x1) LCDs I ordered work - but they use the "authentic" () Hitachi HD44780 controller. Later. -- Phil. | Acorn Risc PC600 Mk3, SA202, 64MB, 6GB, philpem@dsl.pipex.com | ViewFinder, Ethernet (Acorn AEH62), http://www.philpem.dsl.pipex.com/ | 8xCD, framegrabber, Teletext Ever noticed how DOS never says "GOOD command or filename"? -- http://www.piclist.com hint: The PICList is archived three different ways. See http://www.piclist.com/#archives for details.