Yeah, so most amps don't have a back thing(i don't know what it's called, it's like a cover but with holes in it?) with past amps i've had i've been able to just touch the back of the speaker with my hand, mine has a cover over that.

So basically, my problem is, even though all of the screws keeping the back cover on are screwed in all of the way, it's still loose and move's up and down. It's not affecting anything playing wise but should i get it fixed? and any idea's about what might keeping the screws from staying in? Also, hopefully my warrantee will cover it(got the 50 dollar extra year guitar center warrantee as well as the normal b-52 guarantee)
my gear:
Jackson DKMG(the one with EMG 81/85's)
b-52 AT 212 100 watt amp
old gear i'll probably sell eventually:
yamaha beginners guitar
gunmetal grey Fender squire strat
Fender 65R amp