"going this way, preview screen is extremely fluid and pleasant.... However, I am still struggling with moving individual characters... it takes 5 to 10 secs. to select the character and takes even longer to move w/ cursor!!"

do the edit I suggested. you are describing the exact problem with ATI cards that the fix is for. the edit was suggested by the EF/SM support guys.. and it works. (I had to do it to my Poser 7 and Poser Pro)