We are currently starting to use Bitlocker on our Toshiba Satellite R630 laptops (running Win 7 x64) usuing USB flash drives as the startup key. We currently use Toshiba U10 Dynadock port replicators for the laptops as well. The idea is that we will use two USB flash drives - one for when out of the office and one which will be plugged into the Dynadock for when in the office.
We have found that several of our users cannont get their laptop to start when the flash drive is plugged into the Dynadock. It works grand when plugged directly into the laptop ports. I have tried inserting the drive into different ports on the dock but this hasnt worked. I managed to get one user working by checking the boot order of the laptop. His was set to his CD Drive first and then his HDD. I changed the order so the HDD was first and this seems to have sorted the problem for him - though this could be a coincidence as the others were all set to boot from HDD and theirs doesnt work.
This issue does not effect all of our users so it must be something fairly obvious. Thanks for any help you can give.