Maybe it's your lure. You seem to be stuck on that minnow, and not having any luck....hmmm...weren't you the same guy that basically gave up turkey hunting because your tactics didn't work on a particular longbeard
Seriously, here in CT the stockies have switched over to natural bait. The spinners and worms/minnows are still catching fish, but me and a few of my advisors went out last week and killed them with the fly rods. Emerging caddis and midges were filling up the big uns' innerds, and there should be some good hatches soon...
The water temp here is only 55 in a small stream by my house, and usually it's a bit warmer (~58) by now. Perhaps your water temp is low with the cooler Spring, and your fish are just not active yet?