I also used a data/parallel switch to switch between computers but once I do a switch, the LCD will be deactivated. I must exit and run LCDSmartie again for that particular computer to make the LCD work again. Is there a solution to this?
The problem is how to trigger the smartie to re-load the driver. Maybe with an external program that reads the pin status on parallel port there are few free pins for this, But I don't have in mind a program for this (probably you need a custom application for it)