Trivia: first use of netscape opens it at a size which is too small to display the RH splash screen. You have to use the scroll bar to see it all. Might be a splashscreen problem, but I couldn't find a package for that. Having it open at a size that fits on small screens (I was on 1024x768 but sometimes I end up with 800x600 or worse after x configuration :)) is actually a good thing: it's just unfortunate that the first thing you see with netscape is a bit too big.
This won't be fixed; doing so would require changing the first startup size in the netscape binaries.