Problem with new version: No input file specified.

Hi all, First up: Sorry if this has been asked a million times but I spent a better part of last night searching for answers *not* related to the Win Platform. Now to my question: I have a happily working installation of PHP Version 4.1.2 running as a cgi on a iPlanet WebServer hosted on a Ultra II with Solaris 8. Last night I decided to update to the latest version of PHP (4.3.10) for security reasons (holes in 4.1.2) The source compiled just fine using the same config arguments I used for my 4.1.2 installation. However, once I "make install" and attempt to use the newer version I get the darn "No input file specified." page without any hint in my error log since the page was "properly" served by the cgi (status: 200). Anybody has any hints what might be going on? I did make sure that it finds the php.ini file and I defined the doc_root variable -- nothing changed, except the php binary version.... Thanks in advance for any help regarding this.... - Uwe Willenbacher