I am running windows XP home edition.  I installed the new updated DS and everything is working fine so far...no problems.  Are you using windows or Mac?
Did you let it install the c++?
Can you roll everything back to a previous date before you installed...and then try to see what is going on?

edit:
I also have poser 6 installed and nothing changed.

 

“For those who believe, no proof is necessary. For those who don't believe, no proof is possible.”

[Stuart Chase]