Hi Chris.On the internals pentaho 8.2 is calling mshtml.dll which wraps Internet Explorer. The pentaho wiki has been moved onto Confluence and per this post https://community.atlassian.com/t5/Confluence-questions/I-m-getting-browser-not-supported-but-it-is-not-allowing-me-to/qaq-p/1511374 they refuse to support IE at all. I'm fairly sure that in later versions they're directing the help requests to hitachivantara.com and it works OK.For help you can usehttps://help.hitachivantara.com/Documentation/Pentaho/9.1/Products/Transformation_step_reference
As to the popup...it might be the welcome page? You can turn it off in Tools > options
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