NoClassDefFoundError

I created a Java program and ported it to another computer, with only the class file. When I try to run it I get the "NoClassDefFoundError." I've since tried to run it back on my machine and everything is great. I'm not using any extra libraries or anything. Any ideas?

Thanks

p_snipe

[305 byte] By [p_snipea] at [2007-10-3 0:49:52]