Tried a search on this and got nothing so please forgive me if this issue has been posed and answered.

About a month or so ago the screen on my 7000 seems to flicker a bit, not always just sometimes. It is not an on/off but more of a bright/dim manifestation. I can't place exactly when this started to happen but I can state it did not happen before I changed the battery and downloaded the latest System/Edit updates.

Any ideas on what causes this and how this can be resolved?