thanks for your reply.
as these should be vector maps, they should be independet of the zoomlevel. Are you sure that there is a zoomlevel restriction? How big is the file?
I checked my file :
germany-0.2.4.map, 992.41M, 25/07/2011...
As far as I remember, the download didn't brake. Interesting point is, that zoomlevels <= 11 are working. Zoomlevels above 11 are only displayed white.
Locus doesn't seem to be the problem, because in cgeo it doesn't work either ... (ok, i know, they also use the mapsforge lib, but you never know
Hmmm, if no one else has any proposals, I will try to download the germany map a second time to doublecheck that the download is not corrupt.