i disabled the open_basedir for this host now to test, and it still delivers the same result. Any ideas on how i could test this to find the cause of it? I mean i get a valid PDF file, its just blank, so maybe the problem lays somewhere in the data part?

If you try to View Printable Version, does it display fine? If so, does it work as a Guest/Not Logged In user?

All this does is pipe the output of View Printable Version through html2pdf. So, if we can verify that half of it works, we know where to look.

I figured it out, it was me. The forum is behind an htaccess authentication, for the setup etc. It seems like this plugin goes and literally uses a web access to the showthread url for this, so, if a general user without anything special cant see it (say user and password, or even if you would block the printthread for non registered users) it would not work anymore.

It is a great plugin and i keep it in, but you should note that in the first posts text, so it is very clear what it does (direct http access).

All of my forums require that the user be logged in to read threads, so guests are not able to view any threads. This plugin works just fine for me...

can you say when the new version will be ready?

I've installed this, but each time I try to save a thread as a PDF I get the following error message.

Fatal error: Cannot instantiate non-existent class: html_topdf in /home/user/public_html/forum/threadtopdf.php on line 187

I am not sure if I have html2ps and/or ps2pdf installed. Could that be the problem?

There's no doubt that's the problem. You can't instantiate a class when it doesn't exist. :)

Definitely not working for me,

let's make it work please!

Can't fix it if you don't tell me what's wrong.

Ah okay, so what versions do I download and how and where do I install them on my site. Sorry but I don't have a clue what to do with them.