Streaking is caused by not having enough solution on the screen to pick up the dirt that is on the screen. In this case the lack of enough solution is creating a paste or mud, and the cloth is spreading this paste leaving streaks. So the proper amount of solution is important and will vary depending on the amount of surface dirt.
The most recommended method of cleaning your screen is to spray the solution onto the cloth, first making the cloth quite damp, then wiping the screen with the damp cloth. This eliminates the possibility of damaging the screen from solution running down the screen and into the frame area. Pros: it is safer method. Cons: you use more solution and less solution actually goes to work on the screen as it is absorbed into the cloth.
Remember a clean screen in much more enjoyable to view than a dirty one! Photodon offers a variety of screen cleaners and microfiber cloths. We have put together some very useful screen cleaning kits for an even better value.