I have never trie it with this application, but there is some uninstalling tools that enhance Windows uninstaller.
Check : Revo Uninstaller
They offer a free version that can help you, don't forget to run it as admin so he can check all the system for remaining files.
Is it just the cursor or the whole system ? is there any particular hdd activity during the freeze ? The freeze touches both keyboard and mouse or you can use one while the other freezes ?
Because I don't think it's the cursor but the system, why ? the "resolving host" is a system part of...