I'm trying to implement XPM & I think I'm running into the z-index issue described here. The symptom is that I don't get any borders around the HTML block in question, but I have valid XPM comments being generated. I checked & the block has a z-index higher than 1.
I tried to implement the Javascript fix in the article, but it didn't help. Has anyone tried that fix with Tridion 2011? Has this issue been resolved in Tridion 2013?