I tried installing the nightly build (finally I know again where they are! :) the link at the bottom of the download page appears to be broken), but it still won't load mux~, even though zexy is reported as loaded. I must however report some other glitches which might be (or not) related to this. When i first opened pd-extended after installing the nightly build, it couldn't even load objects like [cputime] and [dsp] ! I had to quit and relaunch the program to make them work.
I also noticed that no matter if I uninstall pd-extended using purge, wipe out pd-externals directory and delete .pdextended, after a new install I still get a populated recent files list, so this makes me think that there's something remaining from previous installation: is it normal? does it matter at all?
As for ezdac, I guess I can live without :)
thank you all, athos
PS: I must say I like 0.43 with all its new features, but I am not trusting it for gigs and live performances right now, so I guess I will just try to build 0.42 for these purposes and use 0.43 for experimentation. If I succeed I will post it here :)