Sometimes there are no shortcuts in my apps

[Achim]

Binary package hint: unity

I'm clicking on the Ubuntu Logo, the window opens. That one with
| Media Apps | Internet Apps | More Apps | Find Files|
in it. Below the shortcuts for Firefox E-Mail, etc. If i click them, they work.
But if i click on one of the | Media Apps | Internet Apps | More Apps | Find Files| icons -there is (often) really nothing in it. The next screen opens - but it's empty. Sometimes after a few seconds to minutes it is all back again and i can run my apps. Sometimes i have to reboot to see and access the apps.
The irritating thing is: If i click on one of thoose | Media Apps | Internet Apps | More Apps | Find Files|, the "Search" line changes to "Search Applications". Could it be a misleading command?

For my excuse: I really don't know how to give this bug a good title... My search terms in launchpad didn't reply something helpful for me.

ProblemType: Bug
DistroRelease: Ubuntu 11.04
Package: unity 3.8.8-0ubuntu1
ProcVersionSignature: Ubuntu 2.6.38-8.42-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic x86_64
NonfreeKernelModules: fglrx
Architecture: amd64
CompizPlugins: [core,bailer,detection,composite,opengl,decor,mousepoll,vpswitch,regex,animation,snap,expo,move,compiztoolbox,place,grid,imgpng,gnomecompat,wall,ezoom,workarounds,staticswitcher,resize,fade,unitymtgrabhandles,scale,session,unityshell]
Date: Fri Apr 15 17:02:59 2011
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta amd64 (20110413)
ProcEnviron:
 LANGUAGE=en_US:en
 LANG=de_DE.UTF-8
 LC_MESSAGES=en_US.UTF-8
 SHELL=/bin/bash
SourcePackage: unity
UpgradeStatus: No upgrade log present (probably fresh install)