Gyro-gone?
If you or your company use McAfee for virus scanning, then your GyroQ executable was likely automatically deleted yesterday afternoon due to a false-positive in their virus signatures for 32/YahLover.worm. The McAfee signature file was fixed by midnight, but you’ll now have to reinstall GyroQ. See Gyronix Forum for more info and a download link. Your configuration files should still be fine.
Note that the latest version of GyroQ (1.9.4.9) is currently incompatible with MindReader so you should install GyroQ 1.9.4.7 instead.