[nightheart]

If it's only on the front windshield, its probably very small "leaks" around the edge of the windshield. Big enough to let damp air in, but small enough to keep water out. Get a tube of RTV silicone gasket maker (black looks better) and go around the outside of the windshield. Then you have 3 choices. If the problem persists, I'm wrong and you can pull the goop off. If the problem goes away, you can remove the windshield and reseat it properly, or let the gasket sealant there. I had the same problem, but have no real desire to pull my windshield right now, so I just reseal mine every few years.