Wirelessly posted (HTC Diamond: Mozilla/4.0 (compatible; MSIE 6.0; Windows CE; IEMobile 7.11) Sprint MP6950SP)
Yikes!
Does anything happen when you connect to your computer with usb?
Also, have you tried turning it off then push and hold volume down and press power button while holding volume down to go into bootloader? See what happens. Then soft reset and see if that has any effect.