Dell Latitude 433c

[Tiberian Fiend]

I'm trying to take the bottom cover off, and I have all of the screws out, but now it's sticking around the trackball. How is it put together? I can post some pics if it helps.

 

[Tiberian Fiend]

For the future reference of happeners-by, the last screw is accessed from the top, and is located beneath the "Backlight on/off" Fn label above the keyboard.