Grey sreen TightVNC Raspberry Pi 3

Hi, I know there are a lot of discussions about this grey screen but I tryed all the solution I found searching in Google and I still have this grey screen when I connect to my Raspberry-Pi 3.
Here is my Xstartup code in /root/.vnc/

#!/bin/sh

xrdb $HOME/.Xresources
xsetroot -solid grey
#x-terminal-emulator -geometry 80x24+10+10 -ls -title "$VNCDESKTOP Desktop" &
#x-window-manager &
# Fix to make GNOME work
export XKL_XMODMAP_DISABLE=1
/etc/X11/Xsession

I start a new connection in this way: vncserver :1 -geometry 1280x720 -depth 24
When I edit the Xstartup file I also kill the connection and reopen it.
I really try all the Xstartup solution I found in Google but I still have this grey screen.
I'm using TightVNC Server in the Raspberry with Kali Linux 2.1.2 and TightVNC Viewer in my Windows computer.

When I was using Raspian I didn't edit the Xstartup because I had no problem so I don't know if it's a Xstartup problem or what.
Thank you.

Same problem here with Raspberry Pi 3 too. Have you found any solution?

Hi mamutu07,

I had the same problem and i found the solution in this website .. https://wiki.parabola.nu/TightVNC

6.3 Window manager issues

With certain installs of TightVNC, window managers such as Xmonad will fail to initialize. TightVNC requires each user to have an .Xresources file in their home directory. Your .Xresources file is missing if TightVNC reports an error message like:

xrdb: No such file or directory.
xrdb: Can't open file '/home/<user>/.Xresources'

You should create the correct file, and TightVNC will populate it automatically. This can be done with the command:

touch ~/.Xresources

I hope it will solve your problem...