More noises...

[OffRoadin]

I have 2 different noises in my H2...

1. Drivers rear window makes noises on roll down / roll up. Is there an easy fix for this or will I need to take it to the dealer to look at?
2. At highway speeds I hear a buzzing like there is a bee in the car. Seems to be coming from the windshield area. I think I read a post somewhere that to fix this I would have take off the plastic cowl cover and add sealant or should this be brought to the dealer as well?