Hm..... I was running the sixth Java update, not the newest 10th.... And that fix cut down a lot of the CPU usage.... but now it's jumping around erratically from about 5% to about 75%.... This certainly is the most odd thing I've ever seen a program do. Thank you for your help, though!

Edit: Nevermind all that, it's back to the 100% useage and internal errors.