PDA crashes after using Seidio car kit

Hi,
I recently started using TomTom5 with my Ipaq 5550 in a Seidio car kit, it is absolutley marvelous, however every time I remove the PDA from the cradle and switch it off it will not come back on until I have removed & replaced the battery. I have tried switching it off before I remove it, also disconnecting it from the car prior to removing and even removing it while it was still switched on but it seems to want to crash no matter what. I was wondering if anyone knew if there was a common fault with this set up or if there was a software patch or the like that would cure it. Any help would be greatly appreciated.
Cheers,
Dave.