Bought a new liner yesterday. Put it in this morning, and that seems to have made the difference. Had a fit getting the new liner hung, as it kept falling down, even when duct taped. (Installed it by myself) But, it finally relented, and let me hang it. Filling the pool now (garden hose), and it's looking pretty good so far. Have a few inches of water in, and the few small wrinkles are disappearing under the weight of the water and a little encouragement.

Thanks for your input...it helped convince me to go ahead and get a new liner.