The LCD has an instruction to shift the display. It's 0x14 to shift the display RIGHT. It can be used to scroll the text already printed on the display.

Another option is to give the 'entry mode set' command so that the address counter is incremented and display shift is ON. This way text will scroll as you print it. Before printing it is a good idea to put the cursor on the right side of the display, so that it looks as if it scrolls.

Some time ago I wrote an LCD simulator in JavaScript. You can use it to experiment with such stuff. You can see it at:
http://www.geocities.com/dincerayd...cdsim.html

As for the effects of different 'entry mode set' commands
www.geocities.com/dinceraydin/lcd/commands.htm
may be useful.

Regards,

Dincer Aydin