Can you try it to run <img src="/ubbthreads/images/graemlins/div.gif" alt="" /> in the window mode ?
Configuration hint:
One advantage is it if you run Divinity on GNU / Linux: you must not run it in a fullscreen resolution. Just uncomment and / or correct the following two options:
* "Desktop" = "800x600"
the resolution of your desktop should be the same like in Divinity
* "Managed" = "Y"
You will found options above in the [x11drv] section in your local wine config file.
What want you to know about the winex installation ?