I can't figure out how to use iKlear to clean my G4 iMac's LCD. I follow the directions but I now have streaks all over my LCD. It seems like this liquid is hard to wipe off. I've used the travel packs and the spray. I apply the wet, move it around the screen and then try to wipe off. But I can see all the stop and start marks from the spray all over my LCD. I know this stuff got great reviews so it must be me...what am I doing wrong?