BSE question

[Pan86]

I'm trying to put a BSE on my 2G nano--I've already tried to put it on but I always find that there are small bubbles that get trapped around the edge of the screen--I guess it's because the screen is slightly lower than the body of the nano--or maybe I'm putting too much soap in my solution, I don't know. I was wondering if anyone else has had this problem, and is there a way to fix it?

Thanks in advance for any help