Try going offline before using Desktop Manager.
Also, what do you mean? Desktop Manager tries to uninstall blackberry messenger 5?
Originally Posted by mudiw
But I want to install apps, but I can't do it with desktop manager because wants to downgrade my bbm or remove it.
THANKS.
Check the settings, when I first upgrade to bbm5 after installing/uninstalling any app, desktop manager was trying to uninstall the previous version of bbm, but don't worry nothing happens so you should be fine...