Several lines like this:
A:hover {COLOR: #FFCE00;}
in the Pprune web pages seem to be cause of the disappearing links.
The effect can be killed in IE by going to
Tools -> Internet options -> Accessibility -> check "Ignore colors specified in web pages".
The hover color is then determined by:
Tools -> Internet options -> colors -> check "Use hover color" -> click on color, and select a color.
Unfortunately, checking "Ignore colors specified in web pages" kills a lot of other features as well, so its probably not very useful to many people.
