Doesn't work Avaliado em 1 de 5 estrelas

In 8 or 9 out of 10 cases it didn't convert my html pages to PDF. Tried this about 20-30 times, either timed out or no error message at all. That makes it pretty much useless.

PDF Download 3.0.0.2
Firefox 6.02
Win 7 Home Premium 64 bit