You do have PHP above 3.0.13, but PHP 4.0b4, can't that be seen as PHP 4.0.4??
Can you try to remake/reinstall PHP?
Do you use colocoding? Just so that you can see that you have spellt it correctly?
I copied the text from your first thread and made a search on that in my manual, so that was spellt correctly, but what about inside your code?