[codybear]

well if you used the .41 unlocker,
that does not have overwrite protection,
so if you flashed the stock rom on it,
it relocks the phone.
also, you need to use the 2.31 or some number like that to unlock
if you have a gps radio or you will have problems.
And that's a guarantee.
So if you unlocked before flashing that stock rom,
reunlock using the 2.31 or whatever number it is.