Quote - It is NOT my system......sorry..........I can run 20 other graphics programs at the same time and not a single one of them freezes, crashes, wont open, wont work properly at all........it is only Poser that causes the conflict.  I can have 3 versions of PSP open,  Scrapbooking programs, Photo collage program, Bryce, Vue, and anything else I have.......and they all work fine,  dont stop each other from opening or working together. 

If I try and use Poser after using any other program it wont open...just either goes to a white screen and thats as far as it will go  ot it will get to the flash screen then just close itself.

If I try and use any other program after using Poser  they wont load. 

Poser is in conflict with everything else.  Its definately Poser!!!
Like I said...my system was built purposely for graphics as thats my business!!
Have had our tech go through everything he could think of and he said its the program (Poser) that is unstable.   

It is quite frustrating when things don't work the way they should and I feel your pain in that you have a top notch system that is having issues with a particular app. Possibly sharing your system specs might reveal something, someone else having the same setup with the same problems, or no problems at all.
XP Pro x64bit (sp2)
Nvidia 9800 gtx
EVGA mobo 750i
Intel Q6600
GSkil PC2 6400 (8 gigs)

I'm one of the peps that hasn't had a single issue with Poser, am running both P8 and P2010. I sometimes run Max, Poser and Photoshop all at the same time, not often but sometimes.
Yes, occasionally Poser will just crash for no reason...a full reboot solves this. Not the optimum fix but it happens less than once every 2 months.

Comitted to excellence through art.