Ah good, glad we could help.
Unfortunately the old mono ipods have a range of different LCD types in them, which behave the same with respect to how you use them (so they are all supported) but have wildly different brightness/contrast properties, so our default settings for each model work on the players that developers have access to, but not on all players of those models. The Apple firmware has some way of detecting which kind of LCD it is and using appropriate values for that specific LCD, but we don't have code to do that.