I decided before I try it on my main pc, I tried it on another centos (same version). This one was working perfectly fine until.. I removed the 4.0 version and installed the newer version you said to install and reset the linux machine. After the reset, I logged in and now I cannot see the desktop Icons. The only thing that comes up is the nomachine server. I uninstalled the nomachine but I still have the same desktop issue.
If I where to login to root account, I would get this prompt.