Hello! I've had my awesome E-PL1 for some months now and I've finally gotten around to using the hot shoe. My brother recently started acquiring some strobe equipment, starting with a Yongnuo YN460. Test fire works, but when on the hot shoe, it won't fire when shutter is pressed. One odd thing to note was that it did fire every time I slid the flash in and out of the hot shoe. I've tried all A/P/S/M modes. While on manual mode, I tried to set shutter below flash sync speed just to make sure, but still nothing. Also played around with the flash settings of the built-in flash, but no success. Perhaps I overlooked something? Is an icon supposed to appear if an external flash is detected? It's not just the flash, but similar behaviour while mounting a radio trigger. While sliding the trigger in and out of the hot shoe, it would fire, but will not fire while pressing the shutter. Appreciate any help!