Hi
I upgraded Artio Invoice to 1.7.10 and now I do only get empty PDF-Files when I download them.

It doesn't matter if the server is running on PHP 5.2.17 or 5.3.10 it produces the same empty pages:

System: linux, PHP 5.2.17
Joomla: 1.5.25
VirtueMart 1.19 stable

Everything was running smooth for months before upgrading!

Any ideas would be very appreciatied

Solved the problem already myself.

It was a problem with the preconfigurated template of the older version of VM-Invoice.
I made a reset at the template of the invoice and the PDF works again. Unfortunately my settings have been lost and i did have to adjust the template again to my needs, which is pretty tricky.

You find the reset bottom at the backend of VM-Invoice.
Go to: Invoice Configuration and choose the tab "Invoice Template"
At the very bottom you will find a bottom saying: "Restore to the original Template"
As it says, your settings are mostly gone after that, but only the template settings not things like languages, different fields etc.