Sprint still having GPS problems? Try this!

[dew.man]

I also ran the customizations the first time I flashed, but somewhere along the way, playing with roms, I lost my GPS. I was able to get it back by running just ppst.

As for OMJ, he did say he lost his radio by running ppst, but he also did not do a complete install of the rom from the exe, but rather extracted the nbh, and made changes prior to the oops.