Changes made from version 2.20 to 2.30:
Fixed Swiss grid issue.
Fixed postcode issue with CNE v.9 NT.
Added hint message when the E-compass of the unit has never been calibrated successfully by user,(Vista HCx only).
Change 'Lithium Ion' text to 'Lithium'.
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So according to the changelog, the WAAS bug has not been fixed.
Webupdater:
http://www8.garmin.com/products/webupdater/
Habe es aber selber noch nicht probiert.
EDIT:
WAAS Bug dürfte scheinbar behoben sein:
http://forums.groundspeak.com/GC/index.php?showtopic=170092
.
Velleicht kann es wer mit Egnos testen, bei mir geht Egnos leider nicht