Why are my tubes closing themselves?

[bstanko6]

It's an old glitch. Been around awhile. If you open a tube, select another tube, then go back to the tube you first opened, it will close automatically. You have to go into your configuration files and change it. I really cannot recall where it's at. But, if you change these files, and later on use a mid that changes any file later, it wipes it clean and will close tubes again.