i recently bought th 3538 sound system and the 2 rear speakers are tallboy style. due to my living room arrangement i can only put the tallboy speakers in the front but in the manual says that the tallboy speakers should be placed in the rear. i connected them to the front ports but it seems that only the bottom speaker of the 2 circular speakers on the tallboy works (check for image). Is this normal?? do the speakers have some kinda problem or is it because i connected them to the front port?