[sixfofalcon]

It's mostly from the Rain-X. It causes the water to bead, which is a nice idea. However, it gets on the wiper blade immediately, and then the wiper blade isn't contacting the glass. Little tiny (barely visible) beads of water stay behind after the wiper wipes. That's what the streaks are. Within a few seconds, they collect together into larger beads, and suddenly you can see through the glass again. When you use Rain-X, put your wipers on a low setting, unless it's absolutely pouring rain. I have the same issue... in the future, I'll only be using Rain-X on the side and back windows.

 

[sixfofalcon]

Crappy blades will do the same thing. They get tiny little cracks in the blade edge when the rubber begins to dry out. Since sundarpn said he replaced the blades, I figured it wasn't the blades causing the problem. I have always had this problem with Rain-X--I just don't use my wipers that much anymore. With the Rain-X, you hardly need them.

I think straight alcohol will take the Rain-X off. The regular drugstore variety alcohol is only 70% alcohol, but some drugstores (Target, for one) have the 91% alcohol for about $.03 more. I'll try it out and let you know how it goes.

I'm considering getting the PIAA silicone wiper blades. Supposedly, they make the water bead up like Rain-X. Maybe they'll do it without the streaky crap. They're kinda pricey though, so I might try the JCWhitney knock-offs first.

*edit* Forgot to mention... those double blade wipers are junk. I've never heard anything good about them, and the blades they use are cheap.