Air Bubble behind screen?

Recently purchased a brand new 2010 15" MBP (default screen) and just noticed that there's what appears to be a air bubble (slight oil bubble resemblance) between the gloss and LCD that varies in size from max the size of a dime to just a few mm. If I 'gently' apply pressure with the apple cloth over the spot the bubble follows for an inch or two before returning to the same spot. I read in other forums that gently rubbing in small circles around the area will make it disappear. If I gently apply pressure on the back of the screen in the same area the air bubble disappears completely. However it keeps coming back after a few hours whenever I flip open/close my lid. It causes some screen distortions during the blue startup screen but otherwise I only notice it when the monitor is turned off.

Anybody else experience this before? or whether this should be cause for alarm?