Dex won't boot on Ubuntu 15.10. It dies with the following message:
Set current directory to /home/jhoyla/GOG Games/Dex
Found path: /home/jhoyla/GOG Games/Dex/game/Dex.x86
Mono path[0] = '/home/jhoyla/GOG Games/Dex/game/Dex_Data/Managed'
Mono path[1] = '/home/jhoyla/GOG Games/Dex/game/Dex_Data/Mono'
Mono config path = '/home/jhoyla/GOG Games/Dex/game/Dex_Data/Mono/etc'
displaymanager : xrandr version warning. 1.4
client has 4 screens
displaymanager screen (0)(HDMI-1): 1920 x 1080
displaymanager screen (1)(DP-1): 1920 x 1080
Using libudev for joystick management


Importing game controller configs
support/gog_com.shlib: line 94: 19610 Aborted (core dumped) ./"${bin_64}"

I know the game only has a 32 bit version, and I have installed all the appropriate drivers, and have up-to-date graphics drivers for my Nvidia 770GTX.

I have tried just booting the game directly with and without the -force-open-gl flag. It dies with the highly similar message:
Set current directory to /home/jhoyla/GOG Games/Dex
Found path: /home/jhoyla/GOG Games/Dex/game/Dex.x86
Mono path[0] = '/home/jhoyla/GOG Games/Dex/game/Dex_Data/Managed'
Mono path[1] = '/home/jhoyla/GOG Games/Dex/game/Dex_Data/Mono'
Mono config path = '/home/jhoyla/GOG Games/Dex/game/Dex_Data/Mono/etc'
displaymanager : xrandr version warning. 1.4
client has 4 screens
displaymanager screen (0)(HDMI-1): 1920 x 1080
displaymanager screen (1)(DP-1): 1920 x 1080
Using libudev for joystick management


Importing game controller configs
Aborted (core dumped)

Trying to start GamepadConfigTool.x86 and GamepadConfigTool.x86_64 yields the same error, as does launching the game directly with the -t flag.

Can anyone offer any suggestions?

Problem fixed by purging Nvidia and Nouveau drivers and reinstalling the latest Nvidia drivers.