I too can confirm this bug with dia-gnome 0.97.2-5 on Ubuntu 12.04.3 (amd64).
I did however find another workaround - from http://osdir.com/ml/dia- list/2013-09/msg00034.html - whereby starting Dia with an environmental variable set to disable Ubuntu's overlay scrollbar does seem to stop the unwanted behaviour. Therefore it would appear to me that this bug could well be down to an incompatibility between Dia and the aforementioned overlay scrollbar ('overlay-scrollbar'?). -- You received this bug notification because you are a member of Desktop Packages, which is subscribed to dia in Ubuntu. https://bugs.launchpad.net/bugs/1011446 Title: UML drawing tools' comment fields are too small to be usable Status in “dia” package in Ubuntu: Confirmed Bug description: Start dia, pull up the UML diagram items, create a class. Note that the comment on the main class window is a bit short - it's still usable, but it's definately short. The comment field on the attributes tab is 1-3 pixels tall. Same for both comment-fields in the Operations tab. ProblemType: Bug DistroRelease: Ubuntu 12.04 Package: dia-gnome 0.97.2-5 ProcVersionSignature: Ubuntu 3.2.0-24.39-generic 3.2.16 Uname: Linux 3.2.0-24-generic x86_64 NonfreeKernelModules: fglrx ApportVersion: 2.0.1-0ubuntu8 Architecture: amd64 Date: Mon Jun 11 00:55:08 2012 InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Release amd64 (20120425) ProcEnviron: LANGUAGE=en_US:en TERM=xterm PATH=(custom, user) LANG=en_US.UTF-8 SHELL=/bin/bash SourcePackage: dia UpgradeStatus: No upgrade log present (probably fresh install) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/dia/+bug/1011446/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp