Hello Nick,
Please know that the recommended browsers are Firefox , There have been some issues reported with IE 10, newer versions of Firefox 23, and chrome are still not fully supported by SmartBear along with other Web Application vendors. We are working on adding better support for Firefox 23 and IE 10 for future versions. I use Firefox 22 all day long which is trouble free for the most part. Please know that the recommended browsers are Firefox , There have been some issues reported with IE 10, newer versions of Firefox 23, and chrome are still not fully supported by SmartBear along with other Web Application vendors. We are working on adding better support for Firefox 23 and IE 10 for future versions. I use Firefox 22 all day long which is trouble free for the most part.
Also, May you please try checking firewall settings and clearing out your cache, and cookies. This sometime does the job as well.
Thanks,
Ben J-L