I noticed a few days ago that my home and menu buttons were a bit wobbly. I probably wouldn't have noticed if the search and back buttons weren't so firm. They function about the same, it's just that they feel wobbly (almost as if they're 'cheap'). Is anyone else noticing this? Also, do you think it's worth it for me to try to get them fixed/replaced? Or would that be too much time and effort?