if seen the picture of fl-36r flash, it has infra red compartment in the front aboce the flash head. in nikon or canon flashes, they do af assits. but i tried my nikon flashes on e-pl1, the af assits doesnt work
I ran up against this very issue last weekend with my E-PL1. It was very frustrating and made me wish I had brought my 40D instead.
As with all cameras, you have to learn their limitations. I won't use my Pen for low light shots again. To be fair, the light I was dealing with was REALLY low. In normal room light or even a bit dimmer than normal room light, it does just fine.