So I downloaded the v32 file from NEILOAKLEY site located earlier in this thread and made a CD. It seemed to load and update fine in car, BUT.........
My speedometer no longer works
I have lit idiot lights for brakes, ABS, stability control and check engine.
The NAV system still doesn't give me the 3d perspective I was looking for.

All was perfect before installing the update.

Anyone have any ideas how to correct this? If I buy the OS disc from the dealership and install it, will it correct these problems?

Is it possible that the update was not the right one for a 2006 Z4 with the DSP NAV system?