Why does Divx Plus ruin the video recorded using Fraps? (details inside)?

I cant have both Fraps and Divx Plus installed on my computer because if i do Divx will Make all the gameplay footage go black with only audio. I have had to Uninstall and Reinstall Divx whenever i want to watch or edit these video's and its getting a little annoying, can someone please help me with this. I have the latest update for both programs.