By expanding the plus sign, you access to the next troubleshooting path with a KB article link or other KB articles which could be in relation with your issue. Yes, it’s not a secret that VDR can sometimes run into some issues and needs to be corrected/repaired.
This Mindmap tool might help when google fails…
You’ll find this downloadable PDF/flash utility here.
A quick quote from the blog:
As before, this PDF has a click-able Flash object embedded so that you can drill down into the various topics and articles. We list the steps to take, and link to articles (or documentation) describing the steps in detail. Each main Resolution Path article has more information than we list here however, so we recommend reading the full article if you ever encounter this issue.

Reference: http://www.vladan.fr/troubleshooting-tool-for-vdr/