WLM crashes when trying to place a video call or enter A/V setup

hey there...
i've been having problems with WLM for quite some time now, tried almoust
everything and anything i guess... reinstalled my system several times
already, reinstalled and uninstalled WLM a few times and nothing seems to
work out...
also got an email from support saying to do this:

"I understand that the your Microsoft LifeCam Cinema is not working properly
with Windows Live Messenger. However, it works fine with other applications.
Also, WLMessenger crashes when trying to make an AV configuration. You
tried to fix this issue by several un-installation and reinstallation of
WLMessenger but to no avail.

This must be quite inconvenient on your end. Let me assist you on resolving
this issue.

Itzik, there are lots of probable causes for this issue. Let us start with
third-party Messenger application. If this type of application is installed
and running, it interacts with Windows Live Messenger and creates conflicts.
The user may need to disable the add-on for troubleshooting purposes.
1. To uninstall third-party add-ons:
a. Click Start, type the cmd in the Start Search box, and then press
ENTER, type CONTROL APPWIZ.CPL, and then press ENTER.
b. Click Kiwee Toolbar (sample only) from the list of installed
programs, and then click Remove. The Kiwee have now been uninstalled
c. Restart the computer, and then sign in to Windows Live Messenger.
2. Repeat step 1 to remove any third-party add-ons for any earlier
version of Messenger. For example, remove HiYo, MacroGaming SweetIM,
Messenger Plus! Live, Stuff Plug, My Web Search Toolbar, or any other add-on
for Windows Live Messenger.

Uninstall Windows Live Messenger (For XP):
Important: Please make sure that Windows Live Messenger is not running:
- Click on Start button > Run > and then type the following: taskmgr
- Click on OK.
- Click on msnmsgr.exe under Processes.
- Hit the End Process button.

1. Download Windows Installer Cleanup Utility and install it on your
system. This tool will help you remove the installer files for the said
corrupted programs on your computer. To download, visit
http://download.microsoft.com/downlo...bd/msicuu2.exe

2. Once Windows Installer Cleanup Utility is installed, Click on Start
and look for Windows Install Clean Up on the list of installed programs and
click on it.

3. On the Windows Installer Cleanup Utility window, search for the
following items:
(All Users) Windows Live Communications Platform
(All Users) Windows Live Call
(All Users) Windows Live Messenger
..and all other Windows Live applications
Select the entries one by one and then click on Remove.

4. Download and save onto your desktop the RegDLLs.zip at the following
URL:
http://cid-65825a3320341c04.skydrive...c/RegDLLs.zip-
extract, and then right-click on the extracted file and select Open.

5. Delete the Windows Live Contacts folder.
Important:
Click Start, Click Run, type %userprofile%\local settings\application
data\Microsoft\ and delete the Windows Live Contacts folder.

6. Download Windows Live Messenger from http://download.live.com

· Restart the computer.

Uninstall Windows Live Messenger (For Vista/Win7):
1. Please make sure that Windows Live Messenger is not running:
· Click on Start button, and then type the following in the Start
search box: taskmgr
· Click on Enter.
· Click on msnmsgr.exe under Processes.
· Hit the End Process button.

2. Download Windows Installer Cleanup Utility and install it on your
system. This tool will help you remove the installer files for the said
corrupted programs on your computer. To download, visit
http://download.microsoft.com/downlo...bd/msicuu2.exe

Once Windows Installer Cleanup Utility is installed, Click on Start and look
for Windows Install Cleanup on the list of installed programs and click on it.

3. On the Windows Installer Cleanup Utility window, search for the
following items:
(All Users) Windows Live Communications Platform
(All Users) Windows Live Call
(All Users) Windows Live Messenger
.and other Windows Live applications
Select the entries one by one and then click on Remove.

4. Download the RegDLLs.zip at the following URL:
http://cid-65825a3320341c04.skydrive...ic/RegDLLs.zip
and extract, and then right-click on the extracted file and select Open.

5. Reboot the computer and then delete the Windows Live Contacts folder.
Click Start, in the Start search box, type
%USERPROFILE%\AppData\Local\Microsoft and delete the Windows Live Contacts
folder.

6. Download Windows Live Messenger from http://download.live.com

· Restart the computer."

and yet... that didn't work as well...
don't know what else to do... i have microsoft HD camera and using the
latest version of WLM and my OS is Vista.
any other suggestions anyone?
i'm loosing hope here...