I'm having the "< waiting for device >" hanging problem when trying to run the fastboot command from the Android SDK. I've searched around and seen many with this problem, but no single fix. I've reinstalled the SDK and drivers, made sure HTC Sync and other syncing processes are not running, and made sure USB debugging is on. "adb devices" and "adb shell" work fine. I've also tried rebooting the phone while "waiting." All to no avail.
What could be causing this? What can I do to successfully run fastboot?
This is on an HTC Sensation running SuperSensation v.1.0.5 (Android 2.3.5), connected to a Windows 7 PC.
Thanks for helping with a noobie question.