On May 10, 2016, Microsoft released MS16-051. which contains an update for Internet Explorer KB3154070. This changes how Iframes are loaded, and caused all Iframes in the IT Management suite to cease working correctly.
This issue is to be resolved in a future version of the product. The following workaround can be used to allow use of the Iframes.
On the effected machines, we will set up a local group policy to enable Enterprise Mode of Internet Explorer 11. This will allow us to specify a list of websites and what version of Internet Explorer to emulate the page in.
This step will need to be performed on every machine effected, unless this is done by a network administrator to the whole network via the global policies.
Thanks so much David! This solution has allowed our infrastructure group to continue to manage the Monitor and Alerting Console in 7.5SP1HF5, however I have discovered that I need to toggle the Enterprise Mode off in Internet Explorer Tools menu in order to download packages in the Patch Remediation Center. (Once you have implemented the above fix, a check in front of Tools, Enterprise Mode turns it off temporarily.) Hope this helps someone else as it took me awhile to figure out this was the problem!