when i start it up it says "Universe Sandbox is detecting 0.0 bytes of usual texture memory (which may not be enough). You might experience Problems."
A number of people get this error. This is an error generated by the graphics engine that I'm using so it's hard for me to know how to fix this.
I'm going to be working with them to help identify this problem over the next few weeks.
Sometimes restarting you computer can solve it (but this rarely works). Upgrading your video card will usually solve this, but I realize that's not a very helpful solution for many.
I'm sorry I'm not able to be more immediately helpful on this problem.