I'm having a problem with my headlight and I'm wondering if anyone has had similar problems or might know what's going on with it? I have the Cateye EL320 on my commuter (a Kermit the Frog green Jamis Nova). The light is fine when I start out, but by the time I get to work (it's only 7.5 miles) the light is dead. I don't use the light for the ride home cuz it's not dark yet (it's dark for the ride to work), but the light is fine at the end of the day when I test it. I replaced the batteries and that's not helping. Maybe it's the cold? It's kinda cold for the ride in the morning (31 degrees this morning).