Thanks, both of you, for your help... I appreciate it. Forgive me for being such an ignoramus - I just turned on my new iBook for the first time last night.
Still learning a lot, of course...
Well, what happened was I tried to open a Realplayer video (Realplayer already installed) and a dialogue box came up saying that I needed a Java component and that it couldn't be downloaded. So, I went to Apple and downloaded Java myself... After that, the Realplayer videos worked (I tried removing what I downloaded from the desktop and after that they would not play). So, now I have this "disk" on the desktop...
I ran what you asked, jsw, and this is what came up:
Java(TM) 2 Runtime Environment, Standard Edition (build 1.4.2_09-232)
Java HotSpot(TM) Client VM (build 1.4.2-54, mixed mode)
I'm also running whatever is the latest version of Mac OS X.