It looks like this:
alt text http://img825.imageshack.us/img825/4664/screenshot4e.png
I'm not sure, but I think this happened when I reinstalled LAMP (Ubuntu).
All files that were similar to the ones below (not bold and do not have an asterisk).
Any suggestions?
NERDTree uses an asterisk to indicate that the item is executable, I believe. At least for me it shows up in all of my .bat and .exe files.
It looks like NERDTree. Perhaps it has a NERDTree setting.
Suggestions: