this is what i have found that works.

first open agps-beta while you have a net connection.
hit your location with some accuracy.
*close* agps (this is the step i found on this forum- that makes all the difference in the world)
(you will never get a fix if agps is still running)

open maemomapper or wayfinder
click on the satellite view you should see numbers of satellites

and voila you should have a fix within a minute or two.. it works for me within1-2 minutes if i am stationery.....longer if i am driving