Gerald don't have an answer for you.
I posted a few comments and it was with openchange that I think a few things from 3.4 had somehow fallen back into 3.3.
As far as I am aware the proxy in 3.3 worked.
So maybe this has happened again.
Only reason I am posting is with the release of 3.4 so near. It might not be beneficial to post bugs at this moment.
If you need something that can't wait a week then maybe 3.2?
http://sourceforge.net/projects/zentyal/?source=directoryMaybe others can say hey is squid working in 3.3?
Also anyone on a new install having the same?
I believe its always good to communicate here and make sure you have a bug without flooding trac.
Which I am glad you are doing.
Anyone else?