UDM4 stopped working
 

I've been using UDM4 on my site (www.activeamericans.com) for at least six months. Today it just stopped working. Internet explorer is reporting an error saying "UM is undefined"

Are you still getting the error? When I look at your site in both IE and FF, it works fine for me, no error messages.

Hacked
 

The problem with UDM4 was that my site was hacked and some code had been added to some of the UDM4 modules. Once I fixed the modules (copied over good ones), everything started working fine.