I have a strange issue with my a headlight.

When I turn the ignition on one headlight works fine, the other however just flickers for 5 seconds then goes out. when I flash the brights the DRL of the milfunctioning light flickers again for about 5 seconds.... the bright doesnt seem to work on that headlight either.

To make the situation stranger, the light started working perfectly fine for a couple weeks (just after I bought the car, it had been sitting for a while), then I didnt drive it for a few days and the light went out again!

note the signal light in that headlight unit still works fine...

any ideas guys?