The larger your runtime the longer it will take Poser to start up.

Nothing personal Acadia, I consider you a friend you know that, but I get fed up seeing this one come up all the time, it's an inaccurate statement!!
I have one runtime which is huge set up in sub folders and each week it gets bigger and each week my start up time NEVER gets longer and in fact since going to 64 bit, it's quicker than before.
Start up time depends on a lot more than runtime size, any number of things could cause it to slow down including Viruses, trojans and not defragging often enough!!

Rant over!! 

Injustice will be avenged.
Cofiwch Dryweryn.