Hey anybody using an Oregon 550t on a bike? I've been trying one out for a couple of months and I can't see the damned screen most of the time. I do not have it wired to the bike as I've heard all the horror stories about the usb connector breaking, so I'm just running it on batteries. There is a sweet spot, where the light hits it just right and it's beautiful, but two thirds of the time I can barely make it out. Of course I've tried it with the screen lit all the way and off, seems to make no diff in the daylight. Am I doing something wrong? Could I have a defective unit? Am I going blind? (don't answer that one.) I have a 60CSx and a Zumo550 and they look great. Thought the Oregon would be another multi-purpose unit. Any ideas?