Every time I start up Visual Studio, I get nag screens from JustCode and JustTrace. Even after going to Tools | Add-in Manager and deselecting both of them (the only two items in the list), the nag screens still display! I return to Tools | Add-in Manager and see that they are again selected - even the Startup checkbox, and the startup checkbox for JustCode doesn't even allow me to deselect it.
I don't know if this is a Visual Studio problem or a Telerik problem, but it is an irritant - how can I oust the miscreants once and for all?
Did some digging and found this for you: http://devcomponents.com/blog/?p=653
Granted it's not the same component, but the behavior is normally universal regarding addons.
Run VS as an administrator by right clicking the VS icon and selecting "Run as Administrator". This will allow the check boxes to be unchecked and have your preferences saved.