With the hover thing, I know in theory what's happening, but am finding it difficult to get hold of various Microsoft OS and browser combinations to check these things out in practice.
Basically, you can put a hover effect on anything in most browsers. I've used this so that secondary information within forumposts are greyed out and not competing for attention with the main content until you hover over them, when they are darkened and the contrast increased to make them more readable.
In IE you can only apply hover effects to hyperlinks. I was originally going to just leave the text in their hover ('on') state but Urs reminded me that you can use javascript in a .htc file to simulate the same kind of hover effect in IE. The effect can be processor intensive, particularly on long pages, so I've tried to target it as narrowly as possible. If it only works sometimes, then I've probably targetted it too narrowly in some way.
I'm trying to get Virtual PC set up again (I upgraded to Mac OS X Tiger and the Virtual PC update to make it work again on this OS only came out this last week) which should make it easier for me to carry out such tests and iron out the niggly problems with IE.
I'm glad you got the SCORM working. I never actually got your SCORM to load (something about a manifest) but the test SCORM I found on the web loaded and worked okay apart from the transparent background issue.