Default google maps and gps

hi Guys,

i have strange problem with google maps ... it won't start the gps!
the gps works fine - tested with gps test

how can i fix this? ... i've tried all google location settings, nothing changes ... it will use the network to locate me, but not the gps ...
the gps-location icon in the notification bar won't appear when i start google maps ...

how can i fix this? any ideas? thank you!

i am on nf4