Phone won't boot.

[amartko]

My ATT Nexus One, stock and unrooted froze today. I pulled the battery and when I replaced it to boot again, it went into the white screen with options to restart the bootloader, power down, reboot. I do not know what to do. Any help would be greatly appreciated. Thank you very much.

 

[netninja]

go to the bootloader and try some of the options there