nagvis isn't accessible for no one, because of unknown user

[Thomas Schweikle]

After installing nagvis is does not know about any user, exhausting:

 error
No user name was handed over to NagVis! For possible solutions please have a look at the FAQ on www.nagvis.org.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: nagvis 1:1.4.6-1.1
ProcVersionSignature: Ubuntu 2.6.38-11.48-virtual 2.6.38.8
Uname: Linux 2.6.38-11-virtual x86_64
Architecture: amd64
Date: Fri Aug 26 14:42:12 2011
InstallationMedia: Ubuntu-Server 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.2)
PackageArchitecture: all
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: nagvis
UpgradeStatus: Upgraded to natty on 2011-05-21 (97 days ago)