Hey i just got my gps-290 , tested with green proggie and everything looks like its working perfect, but wait, longitude : -88.???? , negative that cant be right, do some searching ohh its the 2.71 prx's so well how about i just make my own 3.03 ones, ekkk those crash it, hmm well i have 3.10 oe a' so i guess 3.10 will be the best, green proggie test, longatitude ": -88.??? what the heck, still negative im in wisonsin and i know its not suppose to be negative well i generated a map out southern wisconsin and location is out of range so cant any one help me, ive tried almost every combination of prx's , only one i really havent tried is the mapplus one cause i cant find it, ive also tried map this .46 and the newest one, all say location out of range. help me!! i really want this to work, :(