Possible bug? GUI misbehaving when setting log scale for axes

After executing this simple code

root [0] auto h = new TH1D("h", "h", 10, -5,5)
root [1] h->FillRandom("gaus", 100)
root [2] h->Draw()
root [3] gPad->SetLogx()
root [4] gPad->BuildLegend()

the GUI drag and drop is completely unusable. The stat box cannot be moved in any way, and as soon as the legend or the title is dragged, they just disappear. Is there a problem in my installation?

ROOT Version: 6.18/04

With the root master and root 6.20, I can move the legend with the mouse.
It works for me,

Okay, thank you very much. Should I try to build ROOT again? (in my understanding there is no RelWithDebugInfo binary distribution, is that right?)

6.20 should comme soon.