I actually try to fold mine out, but I also bear down to get it as low to the opening as I can, to get a good grip to kinda fold it. I don't know if that will help you. I don't fold it completely, but fold enough to get the seal broken, and part of the "lip" to change shape enough to pull down a bit. It has helped a lot for me. Maybe it will for you?
8/16/06 at 8:05pm