Fatal Unity Editor Problem with Renewing

Hi guys, I’ve encountered a problem that prevents me from running the Unity editor on now both of my machines.

This bug happens when my license expires. I run the editor and a dialog box pops up asking me to renew. When I click renew, the dialog box disappears, and nothing happens; the task manager shows that Unity.exe is continually allocating memory in the background. Running the editor again does nothing until I kill the first instance, at which point I get the option to renew again. I’ve tried uninstalling and reinstalling. Please, any help would be appreciated!

Unity v2.5; Vista SP1 laptops.

Contact our support team now so they can be sure to lend a hand as soon as possible: support@unity3d.com.

In short, I’m not sure what would cause that but our support team might!