thats just weird..
i didn't switched to 2.4 because there was no major update there, just updated the kernels..
but it worked gr8!
maybe it worked for you, and you just don't know it?? did you tried to use "GPS Status" from the maket?
go outside and check it...
i tried outside at my dog-round...works outside...
but now after a few yours it cant no satelite...thats realy weird...