AABoeing wrote on Sep 29^th, 2010 at 1:07pm:

It seems like when I configured the FMC before flight, that the bugs are already set. They are either set correctly or they are already in that position.

Because I can't move them. I don't pay a lot of attention to them. They might be pre-set by the FMC, but I don't think so. If I have a light plane, the speed bugs appear to be higher, for my take-off and landing, than those listed in the CDU. I'm pretty sure that is what led me to do it he way I described in my previous post.

Mark