I have cleaned it out and reloaded three times, and P7 will load up to the splash screen, stop: ask me for "Null.obj". when I say "continue" (because it can't be found with the search engine) it blinks off and I am back to my desktop..and ideas as to what is causing this? I had it up and running for about a week, then this phenomona appeared, and I haven't been able to get it fired up since. P6 is still working fine. "Null.obj" does not appear in either the P6 or P7 obj files...

hi 
go into safe mode and remove all the poser program from there return to the normal mode and try reinstalling poser that way!

Did that..no joy! That was one of my first moves..

if that did not work then contact poser see if they can help mmm i was just thinking i was going to tell you to do a system restore to the last time it was working but if you dont have that switched on then if will not be no use!

Anthony

i have found a patch it will cost you $2 but it's says for poser 6 i doubt that will work here is the website http://www.contentparadise.com/us/user/cp_patch_product_12981

Just wondering if you  could open Poser 6  then load the ball prop and then export it as an object into a temp file. You could then rename it to Null.obj and then when you open Poser 7 and it asks for the object you can locate it under that temp file. Now you can delete everything in the scene and then have this new scene set as your prefered state. 

Could there be a reference to an external runtime that isn't
actually present, or which has moved?  P7 seems to be more
fussy (or buggy)  about the runtime list. 

As an experiment, you might look at the libraryPrefs.xml file,
which will be in your Documents and Settings folder under Poser 7.

Here's what mine looks like; the fourth line shows that the P6 runtime
(index 2) is the one that I actually used.

You could try changing the circled number in the fourth line to the index of the
"home" runtime ...  which is probably zero but you should check anyway....

Thanks folks.. that cured the problem . Ockham, you were right on the money, but I took the easy way out and just deleted the Pref files..it works fine now..again, thanks to all!