I was at school, and I ran a program which would infinitely print a number, each time increasing it by .5. I wrote it in pico-8, a retro computer simulator, where you can write code in Lua. I left it for twenty minutes, and when I came back, there was a list of flashing .5 left in the screen, even after I quit pico-8 and restarted my computer! Please help! Is there any way I can remove it? Thanks

Update:

For some reason, it seems to have just gone away by itself, but I'm going to leave this here for reference