The last few days my Blackberry and escape buttons felt very loose. The top of these buttons seemed to be pushing out and I had to press them firmly to get them back into place. I had only used one business card on top of my battery because that was the only one I had at the time. Last night I did some searching and added another one. Not only did it make my screen click so much better, but now today I noticed my buttons are back into place and don't lean forward. I've been using it all day since early this morning.
