1997 Chevy S-10 cranks but does't start

When the ignition switch is turned to the run (not start) position the dash lights don't come on to indicate to me that all systems are go. If I turn the key to the start position the motor cranks but won't
start. This does'nt happen all the time but with greater frequency lately. Also, once in a while the engine will die and dash lights go out while running at low speeds. The engine otherwise runs good.