dialog box height wrong (gigantic -- off bottom of screen)

There remains a problem, or at least incompatibility, between openjdk and jre from sun.com -- dialog boxes an be displayed with gigantically over-size height (so much so that they extend above or below the screen and you can't see the whole box).

Attached are two screen shots of the same application. The one using openjdk6 is unusable, the one using jre1.6.0_x from java.com is correct. The application is a login challenge box from Interactive Brokers's Trader Workstation application.

Please view the screenshot images.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: openjdk-6-jre-headless 6b23~pre11-0ubuntu1.11.10.1
ProcVersionSignature: Ubuntu 3.0.0-16.28-generic 3.0.17
Uname: Linux 3.0.0-16-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
Date: Thu Feb 16 14:36:46 2012
InstallationMedia: Xubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
ProcEnviron:
 PATH=(custom, user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: openjdk-6
UpgradeStatus: No upgrade log present (probably fresh install)