96 Blazer starting problems

ok, I've looked all through this forum and haven't found anything regarding this yet. My 96 Blazer, every once in a while, won't turn over. Sometimes it works fine, other times the lights all come on and everything, but when I turn the key, the starter doesn't turn. BUT, here's the odd thing... if I turn the headlights on first, it starts just fine. Starter going bad? Something else? Really I have no idea. Any help would be great.

do you turn the lights on all of the time now or just when it won't start.

only when it doesn't start...

are your daytime running lamps working?

as far as I know... I don't have the car with me right now to check, but I think they are

i don't know exactly how, but your ignition and your drl circuit are tied together. my best guess would be somewhere in that area.

thanks, I'll check that out