Graphics glitch on rotating "progress" icon in the main window panel

[Zygmunt Krynicki]

When any operation is in progress a rotating "progress" icon/tab is displayed.

On raring, using Intel 3520M cpu (the intel HD4000 card) this is rendered incorrectly.
See this screenshot for details: http://ubuntuone.com/341MqGBtDP6VoyB9gosHGm

ProblemType: Bug
DistroRelease: Ubuntu 13.04
Package: software-center 5.5.3
ProcVersionSignature: Ubuntu 3.7.0-7.15-generic 3.7.0
Uname: Linux 3.7.0-7-generic x86_64
ApportVersion: 2.7-0ubuntu2
Architecture: amd64
Date: Wed Dec 19 17:56:59 2012
InstallationDate: Installed on 2012-12-18 (0 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Alpha amd64 (20121214)
MarkForUpload: True
PackageArchitecture: all
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=pl_PL.UTF-8
 SHELL=/bin/bash
SourcePackage: software-center
UpgradeStatus: No upgrade log present (probably fresh install)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[John Swing (john-swing)]

Same here.