# Computer Help

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If the LiveGraphics3D boxes on the animations just say "loading" with a stellated star picture, but never actually load, you'll have to increase the amount of memory available to Java.
Note: these instructions show the boxes for my version of Windows2000, but it seems pretty similar for other operating systems. You'll need to find your Java control panel, and then find a blank box that says something like "`Runtime Parameters`." Click on the box, and type this in (including the '`-`'):

- If you have 1GB or more of RAM, then type `-mx512m` (all animations will work)
- If you have 512MB of RAM, then type `-mx256m` (all animations will probably work)
- If you have 256MB of RAM, then type `-mx128m` (some of the animations will definitely not work, sorry)

Here are some screen shots of how I did it on my computer: Windows users: Click Start, go to Control Panel, and open the Java control panel.
Now click on the Java tab, and View the Java Applet Runtime Settings. When a new, small window opens up, click on the box on the right (Java Runtime Parameters), and enter `-mx512m` to increase the maximum memory for Java. Here, the 512m means 512MB. You probably shouldn't go much over half of your memory, so if you have a computer with 256MB, you won't be able to see the 3D Planetary Motion animation (I'll work on this). If you have 512MB in your computer, then type `-mx256m` in the box. The planetary motion animation currently needs about 250MB.