> On a new ubuntu install (11.10) with pgf 2.10-1, whenever I load tikz
> topinserts disappear--they just never show up in the output. This
> happens even if I don't use tikz. I reverted to 2.00 and things are
> fine. This is a terrible bug! I spent days before I tracked it to
I seem to recall that TikZ/PGF steals \end, and causes
it to do very nasty and unexpected things if one is
unlucky. I also recall it took me a very long
time to track this down . .
I regret I don't know which version of TikZ I was using until today,
but having been advised that certain functionality w.r.t. TeXshop
could be achieved only by updating to a more recent version,
I performed a "TLMGR update all" on my TL 2010 installation.
The behaviour of TikZ has now changed dramatically and disastrously.
Whereas before today the following would centre "Hallo" vertically
on the page :