I've been using Waze without many problems for the past year or so, but recently, a few issues did arise:
1.) The live map doesn't display any roads or other info. E.g., if I try to locate some place in Emmerich am Rhein (Germany), the live map shows mostly white:

Screenshot from 2013-01-07 18:59:05 by Robenroute, on Flickr
2.) Possibly due to the problem mentioned above, calculating a route using the live map, seems impossible.
3.) The map in the app has bits and pieces missing, where the map in the editor clearly shows the info (and has been showing the info for many weeks/months already). A few weeks/months ago, the map in the app was fine, but it isn't any longer now. Look at the following screenshot, where part of the Rhine/Rhein (river in Germany) is missing:

Missing water by Robenroute, on Flickr
Anyone any ideas if this is my doing something wrong? Or perhaps it's a glitch somewhere in Waze? I'm using Firefox 17.0.1 on Linux, by the way. Same thing happens when using Firefox on Windows 7.
Many thanks in advance!