Problems signing in WLM Version 2009, Build 14.0.8089.726

In the past I already had problems signing in WLM Version 2009, so I decided
to uninstall it and reinstall the previous version. However, since yesterday
it is not possible anymore to use this previous version. Microsoft forced me
to install the newest version of WLM (Build 14.0.8089.726), because of
security issues.

Again I am confronted with the same problem. Each time I want to sign in an
error message is shown. It says that Windows Live Communications Platform
encountered an error and needs to be closed.

Further details:

AppName: wlcomm.exe
ModVer: 5.1.2600.5755
AppVer: 14.0.8098.930
Offset: 0001b21a
ModName: ntdll.dll

Exception Information

et cetera

It seems many people have similar troubles. Still, I have not found any
useful solutions.

Please help me out.

Addition the previous message:

Exception Information

Code: 0xc0000005

Nobody who can help me?

using ctrl alt del, stop the application: nSvcAppFit.exe. and them you loggin. ( apparently our graphics card has a problem with logging-into windows live messenger 9). You have to stop this application each time you turn on your pc cause it comes back on each time. Good luck

App.Name: wlcom.exe
AppVer: 14.0.8098.930
ModName: ntdll.dll
ModVer: 5.1.2600.5755
Offset: 001b21a

I could not solve this problem please anybody help me!