I cannot post using this browser I have to use firefox which isn't my preference. Does anyone know why I can't post on this site using Internet Explorer 11?
Yes, we've had some Clients with issues due to Microsoft's garbage policy of releasing their bug filled products. You most likely need to activate Compatibility View. Try the following:
Click on tools and look for Compatibility Mode Settings, then you can add the site address and it should fix the problems for this and any other sites that broke with this release.