When you type username starting with upper letter during Ubuntu 11.10 installation, it is marked as it is correct with green tick. Then if you click "Forward" button, such username is refused with message that it should not start with upper letter. Well, you should either allow it (as OpenSUSE does) or not mark it as OK when it is typed.
ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: ubiquity 2.8.7
ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
Uname: Linux 3.0.0-12-generic i686
ApportVersion: 1.23-0ubuntu3
Architecture: i386
CasperVersion: 1.287
Date: Wed Jan 4 00:34:26 2012
LiveMediaBuild: Ubuntu 11.10 "Oneiric Ocelot" - Release i386 (20111012)
ProcEnviron:
LANGUAGE=es_ES.UTF-8
PATH=(custom, no user)
LANG=es_ES.UTF-8
SourcePackage: ubiquity
UpgradeStatus: No upgrade log present (probably fresh install)
This version has expired