I've upgraded Poser twice, to P7, and Vue twice, to Vue 6 Esprit, and I'm happy I did.  The memory bugs in P5 were mostly corrected in P6 and are pretty much gone in P7.  There are a lot of new options in P7, including HDRI lighting and better use of IBL, along with collections which allow you to have rapid access to your favorite things without having to look through your runtimes.  There's also the multiple undo feature that most of us have been asking for since P3.

As for Vue, even though this is the Poser forum, lots and lots of improvements, including a little goodie called ecosystems which allows you to have objects with millions of polys that don't bog your system.  You should read the Vue pages to find out everything that's happened since Vue 4.

Welcome back and Happy Holidays.

Hugz from Phoenix, USA

Victoria

Remember, sometimes the dragon wins. Correction: MOST times.