Hello. I would like to get your opinion on the placement of 'surround' speakers. I have CSW (Cambridge Soundworks) Model 5.1, which have both BiPolar and Dipolar settings. I have read so much about where to place surrounds; Many are conflicting opinions. Here are the options pertaining to my room: OPTION1: On the BACK wall; ~2' behind the viewers/listeners. Placed low; ~4' off the floor. OPTION2: On the BACK wall; ~2' behind the viewers/listeners. Placed high; close to the ceiling. OPTION3: On the SIDE walls; Placed high; very close to the ceiling. Unfortunately, I cannot place low and to the sides as there is a sliding glass door to the listeners-right-side. As a side note, the ceiling is standard (US) 8' height. Other questions I have: --Is it OK to mount the speakers flush against the wall? --In general, would BiPolar or DiPolar be preferred? http://www.cambridgesoundworks.com/c...rround_blk.htm Thanks for your time.