Open your Poser.ini file in a text editor (eg. Notepad)

Change:
PREVIEW_OGL_OBJECT_BBOXPICKING 0
to
PREVIEW_OGL_OBJECT_BBOXPICKING 1

For me (Win XP) the Poser.ini file is located here:
C: > Documents & Settings > Compaq_Owner > Application Data > Poser 7 > Poser.ini

"You don't know what we can see
Why don't you tell your dreams to me
Fantasy will set you free." - Steppenwolf