Hi Jesuska
I had the same problem with the maps being behind. I found a web site that is brilliant. Here a simple program change that anyone with a little computer experience can do at home. If you conect your N900 to your PC, go to the N900 flash disk, go to ./Drive/maemo/settings.ini

change three settings as follows

fps=16.0
antialias=false
PositionFiltering=false

and save it. It worked brilliantly for me.

It is suggested that you back up the folders before you change them, but I discovered they are all already on the PC after downloading the program from the internet under Program/sygic navigation/maemo. If you make a mistake you can copy the original files that are on your PC back to your device.

Here a link to another great web site where a couple of other changes are explained, for example how to turn off the annoying "safety message"

http://zehjotkah.blogspot.com/2010/03/sygic-modden.html


Have fun, it made the navi software for me worth the money.
By the way, I have sent all this to the really nice guys at Sygic and have been in regular contact with them about these problems, and I believe they will be taking the suggestions seriously for an update.