OK, I did as someone in this group suggested and had the software upgraded
in my 550i 2006. They did find several "software faults" and upgraded it.
But I still have both problems:
1) Comfort Access: works sometimes, sometimes doesn't (have to hold the key
up to the window to get it to work)
2) iDRIVE: Sometimes starts right up, sometimes sits on the BMW screen for
up to 15 seconds.
Anyone else find the solution to these problems?