Hello Zandrom,
Thank you for your post. You may indeed be experiencing a bug. In order to make sure we will need to gather a little bit of information. The two main things that I will need is the verbose logs, and the dxdiag output. the instructions to aquire both can be found here:
Instructions for getting verbose logs:
under the section titled: None of the Above Helped - Getting Debug Logs
Instructions on getting Dxdiag:
Once you have that info, just zip it up using the utility of your choosing and attach it to a comment. When I have received the information I can compare it to existing bugs to see if the issue is already present in our database, and if it is not, I will prepare a bug report for you and submit it to the developers.
Thank you for your patience while we work this out,