i dont know at what stage it happend, possibly when installing iGotya, but now my standard map app shows up nothin but a grid and the dot where i am?, any hints as to how to fix this? , i have another phone (both iP4 on 4.2.1 but the other is not JB)im cool with following instructions just not cluey enough to work it out myself, any help would be greatly appreciated.

Cheers