MGL Avionics User Forum

I recently got a new internal card for my Challenger. Installed it, it didn't include the maps. No problem, I'll download new ones. Downloaded into the Maps file and I STILL GET A NO RASTER MAP MESSAGE.
Why is MGL so hard to get to work?

What did you install ? What do the filenames look like ?
Does your EFIS know where it is (so it can show you maps at your position if available) ?