We are trying to configure OpManager to manage an APC UPS and to report environment variables.  I have downloaded the latest MIB from APC, but after loading it, I can't access the MIB in OpManager.   Every time I try to access it, I get a message "A script on this page is causing Internet Explorer to run slowly.  If it continues to run, your computer might become unresponsive".  I have options to stop running the script.  If I choose to keep runing the script, I keep getting the dialog box over and over.  What am I doing wrong?