I bought a SWR Henry Jr, a couple of months ago used. I keep it in the garage, and a couple weeks ago I found that mold was growing on the cab. I took some Lysol and wiped it off, and a few weeks later the white spots reappeared. I cleaned it off again today, and left it out in the sun in hopes that the mold would be killed off. Has anyone had a problem like this? Any tips to get rid of the mold?