i just got a jvc l-f210 as a gift. but im having a problem setting it up. EVERYTHING works. except the weight. it came unattached (as it should) and was resting in its "spot" but now i cant get it attached to the arm. the best i can do is get it to somewhat hang from the back with it touching the bottom. is this how its supposed to be?? what am i doing wrong? i would ignore it otherwise except it skips when playing (because of the lack of weight). thanks for the help