No Dash or Instrument Cluster Lights

[Pensfan11]

Went into a store, everything was fine. Came out an hour later and when I turn the truck on, no inside lights. The headliner lights work, the radio works, turn signals work, horn works. The dash lights are out, instrument cluster lights are out, radio lights are out. I checked the fuse in the block under the hood and it's ok.

Any ideas/suggestions before I take it to a dealer?

Thanks.