How did you go I am thinking of the same thing.
It is working now. I removed float:left suggestion.
Moved sociable.css to style.css.
Waited a while and seems ok now.
See here:
http://www.mattconsidine.com/blog/
I have the same problem with vertical icons with >> in front of each one.
I have upgraded to wp 2.9.1.
I have tried all the suggestions above but it is still not working?
I did notice that even with the check box for “sociable.css” switched on that when editing the sociable.css file it was intermmitently active and inactive.
But I have tried with all above combinations with seemingly no change.
