acroread9-9.4.2 -- 100% CPU usage

[Ronald F. Guilmette]

I knew that this was a problem for older versions of the adobe acrobat
reader (acroread) but I really thought that SOMBODY would have fixed this
by now, as it has been a longstanding problem.

But alas, acroread9-9.4.2 as installed from the ports tree on a reasonably
up-to-date 8.2-RELEASE/amd64 system is still consuming 100% CPU whenever
it runs.

I googled around awhile trying to find the solution, and found a couple of
suggestions for fixing this, but none of them worked.

OK, so somebody please clue me in.  What's the magic diddle I have to
apply to this system in order to get acroread 9.4.2 to stop consuming
100% CPU?  (I already tried diddling the "direction connection / proxy"
thing in a couple of different ways and that makes no difference at all.)