Meade has recently started shipping a new version of the "497" Autostar. It appears that these are totally different from the 'old' ones and AutostarX won't work with these. I haven't been able to experiment with one of these new 497 and don't know yet the extend of the changes. I'll post an update as soon as I know more about this. Version 1.4.2 has some extra test in it to prevent you from flashing an autostar with the wrong ROM file AutoStarX allows you to upgrade the flashrom of your Autostar on Mac OS X (495 and 497 only for now). You need a USB to serial adapter (keyspan, ftdi,...) and of course a Meade 505 serial cable (or a home made one). Download AutoStarX version 1.4.2 (universal binary)(100 KB zip file) Any feedback and comment are welcome via email : pineau at rti-zone dot org you want to support the development of this program : Meade and Autostar are registered Trademarks of Meade Instruments Corporation.