Walking and falling extra slow sometimes

The past few days I've been having trouble with terrible lag. Specifically, falling very very slowly. Symptoms include flying very slowly. When flying, I never go into flying anim. I stay in floating animation as I drift forward. Symptoms include falling very slowly. When walking down a ramp or stairs, when I get to the end of the step, I hang in mid-air for several seconds while I fall a few inches to the next step. Repeat for each step.

I've cleared cache. I've relogged. I've rebooted. It has happened on different computers.

Any other suggestions?

Thank you for your help.

Vero

I found the problem! It was something wrong with my OpenCollar. Once I reset the scripts in the collar, it seemed to resolve the issue. I don't know what setting in the OpenCollar caused the issue, but resetting the script resolved it.

This should be fixed in version 3.2 of the collar. See http://code.google.com/p/opencollar/issues/detail?id=212

I've seen this problem while experimenting with some movement scripts of mine.
It seems that if llMoveToTarget() was called without llStopMoveToTarget() afterwards and you have entered a different sim (i.e. teleported out) it makes the avatar fall really slow as you've described.
Personally I think this an SL bug but if you're still having problems just rez an object, wear it, add a new script which calls llStopMoveToTarget(); to fix it.