> Would a Unix server affect the above since it is case sensitive?
That I'm not entirely certain.
The fact that it's a Unix based system won't affect things. Case sensitivity
has to be built into the browser, and is not dependant on the OS.
However, IE on a Unix platform probably has a completely different code base
from the win32 version much like how the Mac port. So the maintainers of
that code base may have built in case sensitivity.
Also, IE for Unix no longer is supported by Microsoft. See: