Naive Question on Selinux after setting enforce to 0

When trying to run the sample program, it returns an ‘initialization error’. The SeLinux icon popped out with a ‘text relocation’ blocking message. This happened after I reset the /selinux/enforce to 0. It seems the SeLinux can’t be completely disabled by change the file. What should be done then? Thank you.

What is the OS? On my CentOS 5 system, you can disable SELinux from System->Administration->Security Level and Firewall.