Unfortunately for you.... I don't have an LCD Panel or I would jump in and help you! There are a lot of different modules and communication methods for the different panels. It might make sense to see which panels are 100% reliable and compare their interface code against what you have. If you can get consensus on what the most reliable one is... I'll take a look. It might be they have pushed the timing or something a little bit too far and warming over the interface code makes things better. But that is pure speculation.