I'm having an issue having Nintex forms load for some end users. Basic troubleshooting has narrowed down the issue to their individual PCs as they can log onto a separate PC and this issue goes away. For the life of me I haven't been able to find any documentation on what the software requirements for end users are, aside from needing IE8+, Firefox, or Chrome. Effected users have tried on multiple browsers and are still unable to use the forms.
We're currently running the latest version of Nintex Forms 2010 on SharePoint 2010 if that matters; and this problem has followed us intermittently through the past several updates.