freeze up when poser couldn't find texture or *.obj, tt's old bug come with poser4. re save yr poser file with correct tex path,tt's only way to slove. (but 20gig & only 900mb free space, u sd ask "why not?" couldn't imagine yr computer can run any 3d or graphic edit prog. basicly windows needs to hv not less than 15% free space of ttl hd for swap & temp files.even u didn't hv any memory eater prog installed.)