Ken in KC,

Since your unit is likely still under warranty, I would suggest calling 800-SAMSUNG and scheduling a service call. I do know that if you can re-create the problem in front of the tech (or have pics or video), that it will increase the ability for them to determine what is wrong.

If you'd like, also register the unit online. Doing so will give you 3 months of additional warranty coverage for free.

Keep me posted.