evo restarting over and over by itself??????

[unsane]

So i was send ing a text and my keyboard got all laggy and then the phone decided to shut itself down and now it just continues to cycle on off on off over and over......,i pulled the battery and stopped the cycle of on and offs but the entire phone is just a mess......,LAG CENTRAL......i dont get it.......its about there words behind now as i type this message.........an ideas out there? The last thing i installed was astro bluetooth moduale from the market, but that was over three hours ago,