screen looks weird since battery died

[n1n3b0y]

hey all, was wondering if anyone has had this problem. well i stopped my car and turned on the hazard lights to load groceries in to the apartment but i totally forgot about it. so it sat there with its hazards all night and drained the batter. so i jump started it and all was fine except now my nav screen is this basic blue color and the resolution is low or something. i can pick different color schemes but they were different from before. also im missing the GPS navigation option from my menu... maybe some other stuff too but i cant remember. anyways everything still works, the nav unit in the back is still on and can eject the cd and whatnot, but my screen seems to not recognize it..

i heard that the computer is run through the nav system and if it doesnt recognize it, it goes back to the basic blue screen, has a weird font, and loses these options options..

if anyone can help with what i should do, please let me know. ive checked my fuses and took out the nav fuses for 30 seconds and put them back in.. no luck.. maybe if there is a way to restart the computer? i have also unplugged the battery for a few minutes (in the trunk) and plugged it back in.. still no luck.

i have a 2001 x5 4.4l

edit. also its not the DVD one.. so im guessing its mk3? dont know how i could have corrupted the flash since it wasnt running anything in there while the car was off.. the cd wasnt even in there, no radio playing etc..