setting up apache index

[ihatestuff]

hello,

say i have a cgi file that i want to load as my index. so when i go to my site (lets call it blah.net) it immediately loads my cgi file (lets call it blah.cgi).

i tried changing my documentroot to my cgi-bin and then i put "blah.cgi" as my directoryindex. when i loaded my page "blah.net" it just displayed my cgi as if i opened it with notepad, but it loaded fine if i typed in the entire address to the file.

my question:
what exactly would i have to change in order to assign "blah.cgi" to load as my index correctly, without having to move it out of my cgi-bin?