Really beginning to think that longer testing cycles are in order as the list of bugs with 8.04 are perhaps the most annoying to date.
Right now, I am dealing with CUPs printing out blank pages. So here is how this goes down. My HP Deskjet F4100 all-in-one works fine with Feisty, Gutsy, what have ya. On the host machine, I use HPLIP as it is simply the best in my opinion.
On my 8.04 running notebook, I am using ipp: to connect to my printer. I have been doing ipp connections forever, so the syntax is right and it is verified from the print manager in Heron. Ports are all forwarded, although because of that silly "UFW" annoyance, I tested it again with it completely removed in case the ports were not being opened up right.
Here is where I can prove this is a Heron bug. Connecting to the CUPS server via the IP addy, I can print a test page remotely with zero issues. Trying the same test page (or even one of my own pages) leads to abysmal failure.
So long story short - with my HP Deskjet F4100 networked printer, I can print from the http CUPS manager, while the GNOME CUPS print manager and Ubuntu itself is giving me blank pages.
Now where did I put that 7.10 CD...