You can also update the LX200gps / LX200r /LX200-acf using the free (non-Meade) utility
StarPatch from
http://www.stargps.ca/pub/setupSP.exeStarPatch will upload even a SafeLoad LX200gps in about 20 minutes
(far less stress on you than the 1.5 hours of ASU)
If you're in SafeLoad, you may have to manually tell StarPatch (under Options) which flavor of scope you have.
It will then offer both the original (unpatched) ROM file (you want 4.2g for an LX200gps) and/or it will present a tick-list of feature enhancements (and bug fixes) that us users have developed since 4.2g was released.
If you already have a copy of BuildLX4.2g.rom in your Ephemerides folder, you can copy that to
Program Files/Pixsoft/StarPatch so that you don't have to wait for it to be downloaded over the net (again)..
Otherwise, StarPatch is perfectly happy to download it for you.
good luck
--dick