It's an LG Chocolate 2 VX8550 (Verizon Wireless) and I love it, but soon after I got it it started slowing down markedly, possibly around the time I added a 2GB microSD flash memory card, and is gradually slowing down more and more. By "slow down" I mean that all the basic operations, such as responding to keystrokes, take longer to complete. For example, when I'm somewhere in the menu system and I hit the "Power/End" key, nothing happens for about 1.5 seconds, much less instantaneous than the way it was a year ago. The phone otherwise functions perfectly and the battery is properly charged. I have about 200 photos, 12 videos, and 250 audio tracks, all on a 4GB microSD card, and I'm adding more all the time. Could the phone be slowing down because I am filling the card? Does the card need defragmentation and, if so, how might I do that?