Unity produces high disk IO while changing position of a launcher Icon

[Achim]

Binary package hint: unity

If I change the position of a launcher icon my HDD start to write data like „crazy”.

I have attached a demo video.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.8.6-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,move,snap,compiztoolbox,regex,place,grid,resize,gnomecompat,session,imgpng,vpswitch,mousepoll,animation,workarounds,wall,unitymtgrabhandles,expo,ezoom,staticswitcher,fade,scale,unityshell]
Date: Thu Apr 14 17:48:40 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Alpha amd64 (20110318)
ProcEnviron:
 LANGUAGE=en_US:en
 PATH=(custom, no user)
 LANG=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: Upgraded to natty on 2011-04-08 (6 days ago)