What Could Cause the Mogul to Be Extremely Unresponsive?

[Twinsen]

For about a week now, my phone has been acting like it has less than 1mb, when I have the standard ~16mb or so when idle. I had removed Navizon thinking it was the cause of it, but still having the problem. The problem just came out of no where. It didn't occur after installing/updating any program. It just started happening. A few times, I could Soft Reset, and it would go away, but now it starts up that way. Any ideas? I hope a Hard Reset will fix it, but just want to know if anyone can think of anything else to try? I may try removing .Net first...