I finally got the Dyson DC65 complete today. Came home, put it together and started vacuuming. It is doing a great job of suctioning all the dirt and dog hair. Of course, being the first time using it after my old Hoover, the canister got about a third way full pretty quick. My concern is that it is squealing (whistling) while I'm running it. I just wondered if anyone else has experienced this with theirs. I would not think it is normal, but just curious.