I have installed Compiler 8.0 + latest patches, and the Compiler selection tool has no effect ( all compiles still default to MS compiler).
_USE_INTEL_COMPILER has no effect as well.
I had previously been using ICL 7.0 as an evaluation, and the Compiler Selection Tool worked perfectly fine in that version.
I tried on a second machine that had NEVER had ICL installed, and it displays the same symptoms.
This has to something really simple...