I have had the PMDG 737-800 ever since it first came out! I have never Had any off the probs that that lots off poeple where complaining about! But ever since the Latest 800 & 900 Patch came out when ever i fly at Dusk or Dawn as the Light outside the plane changes from Day time to Night the Auto Pilot Panel becomes one solid piece with no buttons or switches!! Never Had any Probs till the Latest Update!! I have updated my ATI drivers and all!!

Sounds like a texture loading issue at time change. Try hitting L a few times to cycle the lighting on the main panel..Best Wishes,[h4]Randy J. Smith[/h4][h3]P M D G's 747-400[/h3][h4]coming to a runway near you[/h4][/font color]Caution! Not a real pilot, but do play one on TV ;-)AMD 64 3200+ | ASUS KV8 DELUXE | GFORCE 5700 ULTRA @535/1000 | Maxtor 6Y080M0 SATA 80 GIG | 512 DDR 400 | Windows Xp Pro | Windows Xp Pro 64 |

Also try moving around the different panels M, Z, A buttons, and even hitting W repeatedly helps, or as Randy suggests, switching the panel lights on and off can help.