my cgi version of php prints Content-type: text/html on web page

hi all, i have successfully run php as a cgi on Solaris and on another OS X machine, but now, with php 4.2.3, my pages are spitting out "Content-type: text/html" at the top. of course, "Content-type: text/html" is important, but why is it showing up on my page...? maybe apache is already outputting Content-type: text/html somewhere... does anyone know why it is doing this? i am also testing this with IE 5.2 on OS X. maybe it is IE's problem... many thanks in advance. -lucas