The only problem I have encountered is when running the editor in Firefox with Adblock or Adblock Plus.
Some of you probably don't even know about the Advanced Link Editor because Adblock is blocking the icon, advlink.gif, that must be clicked to activate the tool.
To allow the icon to be shown you need to go to Tools->Addons->Adblock (or Adblock Plus), click on the "Options" button, and then the "Add Filter..." button at the bottom left. Type in @@advlink and hit the "Ok" button.
An admin on the JCE forums (quickly) indicated that this issue would be resolved in a future release.