Last week I installed Zen Mini on my 3yo Acer Aspire One. I've done a complete reinstall three times now and still get the same two problems. They may or may not be related.
During installation, I enter the root/admin password. After installation, I can log on as a user and enter that root password to launch protected programs, as normal. What I can't do is log on from the start as root. It says I've either entered the wrong username or password, and reminds me about case sensitivity, which I'm certain of when I try to log on as root.
The root password also works if I su in a terminal logged on as user.
Second possibly related problem: after updating (each of the three installs), I installed wicd. When I reboot and log on as user (since I can't as root), a popup informs me that it can't launch wicd as root, no such file or directory.
Possibly related 2.5: I just tried to uninstall wicd and got this error message:
Error for wireless request "Set Encode" (8B2A) :
SET failed on device wlan0 ; Invalid argument.
That might have been wicd disconnecting itself from my wifi. My wifi went off and reconnected.
I rarely log on as root, I'd just like to be able to occasionally.