Okay, just so I understand:
1. You have two separate installations? One is LXDE and one is Openbox?
2. You reboot to change from one desktop to the other?
3. Do you have two separate home directories?
4. Is anything you've posted so far from the LXDE installation, or is it all from the Openbox one?
If all your problems are from Openbox. please do this in a terminal:
1.- Yes I have two separate installations, one in Primary (C:) HDD with LXDE and the other in Secondary (D:) HDD with Openbox.
2.- Yes, I reboot to change from one desktop to the other.
3.- Yes, I have two separate home directories. I wish I had a common home directory, which is much more efficient, but with my limited knowledge with Linux (and PC's as well) I couldn't do it.
4.- Everything posted related to the problem with Openbox is from the Openbox installation, EXCEPT the hardware Info related to my LXDE installation, that runs very well.
So, all my problems are from Openbox.
I will try your suggestion to run in terminal and will post.