Just flashed the "good" 21864. It took first time. Really like the layout and eye candy. My GPS is still dead however.
That's a deal-breaker for me as it's one of the apps I use the most. Thanks for all the help/advice/ideas trying to get it to work. I'm dropping back to 0920 and see if it still works on that one; used to anyway.
GPS works w/ all apps in the 6.1 Stock ROM so I'm fairly certain it's not the phone's hardware.