Messed up $string values

[Swedie]

Hey

I have an ad system that uses a language file. Inside this file all language texts are put into a $lang[] array. But my problem here is with my installation of Apache.

It turns ALL values into "N". All Strings, everything. But only for the script I have made.

Even a simple test like this:
$lang['test'] = "fasdsdfs";
echo $lang['test'];
it echo's "f". that's it.

Now the big mystery is that the vBulletin installation works!!! argh

What is the problem?