As of ROM Update 1.00.03 the GPS Quick Position program (aka GPS Position Accelerator program) does not work. Running the program it always reports the existing ephemeris data is expired. Press the Update button it seems to work. But try to use the GPS for the first time and you will experience start up times that correspond to a GPS Cold Start (e.g. ten minutes or more.)
If you have obtained a fix for this problem will you please report it here.
If your iPAQ 910 does not have this problem will you please report what version ROM and QK Position application you're running.