Filmmack

I bought my GH4 only 2 weeks ago and I love it! However the biggest issue I've had so far is: why can't I use an external monitor when shooting in 24p? The monitor works when it's in 30p mode but goes blue in 24. I've searched far and long for a simple explanation. I've been told it's been answered on other forums, yet, the answer is still not clear to me.