Message box -> inspector laying out and sample game fails

[rpallen]

I just installed LiveCode on my laptop. My OS is Linux Manjaro (an Arch Linux derivative). I didn't see any problems with the installation. However,
when I click on the balloon game in the Start Center sample projects, the game opens. When I click on start it goes to the next screen, When I click on the baloon, it "flies off" and the next screen appears. but I can't navigate the balloon. Neither the arrow keys on my keyboard nor the arrows on the bottom right of the screen cause the balloon to move. I watched Elanor's tutorial with this game a couple of times before I installed LiveCode, so I'm familiar with what the behavior should be.

When I start the program I get the regular interface plus a message box window. The message box window says:
edit the script of card 1 of me
1427818449643 inspector laying out
1427818504895 inspector laying out
1427818508724 inspector laying out
1427818532165 inspector laying out
1427818534828 inspector laying out
1427818538378 inspector laying out
1427818542051 inspector laying out
1427818592469 inspector laying out
1427818595271 inspector laying out
1427818598262 inspector laying out
1427818600975 inspector laying out

I don't know if this is supposed to do that and I don't know if this is an indication of the problem with the balloon game.
I was able to create and run a VERY simple program. I created a new stack, added a button to the card, added "answer "test"" to the button's code and when I clicked the button in run mode, a window with test on it opened as expected. So I know the LiveCode is working at least at a very basic level.
Any ideas what is the problem?

[MaxV]

Do you use Livecode 7?
Please don't use livecode 8, it's too experimental.