According to reports from users, there is a problem in "Download scenery on the fly" after updating to Mac OS X 10.5.2. Enabling this option likely causes FlightGear quit unexpectedly, possibly with a Crash Report dialog.

The problem occurs when FlightGear connects to terrasync (scenery downloader that works in background. it start downloading when FlightGear sends the current location) with UDP connection to localhost:5500. The real cause of this issues is under investigation. One thing I can find is that terrasync is working properly since connecting it from a test program makes terrasync start downloading scenery data properly. The problem should be in FlightGear side or some updated Apple's library.

The workarounds for this problem at this moment can be one of the followings:

• Disable "Download scenery on the fly"
• Postpone applying the 10.5.2 update :-p
  

The GUI launcher for FlightGear Mac OS X is getting more useful and stable. It now introduces two fancy features for Mac users - Voice ATC (FGCOM) integration and Favorite list.

The Voice ATC (FGCOM) integration enables you to make a real voice communication using radio setting. Selecting a COM1 radio and press space bar to talk to your wing mates. Thanks to user-friendly GUI, all you have to do is to write an account info of FGCOM in the network tab. Then the GUI launcher automatically activates FGCOM in Multi Player mode for you. Don't you have an account for FGCOM yet? press "get an account" button on the Network tab. It will show you how to get one.

The Favorite list gives you a means of preserving a named set of current options just like a book mark of Safari. You can switch from one configuration to another with just one double-click on the list in the Favorite tab. Do you have some combinations of favorite airport and aircraft? Do you change options from time to time? Use Favorite list. It's a real time saver.

Moreover, r154 improves stability, especially after OS X 10.5.2 update. Do you experience FlightGear quits unexpectedly with "Download scenery on the fly" enabled? Try this update! you can download scenery again.

You can download the updater from Downloads page, like always. If you don't have FlightGear 1.0.0 full package yet, download FlgihtGear-1.0.0-r152.dmg first, and then, update it with FlightGear-1.0.0-r154-launcher.dmg.