Mandriva Linux 2007.0 here. With wine 0.9.30 ultravnc_viewer.exe (remote access) works perfect.
I installed wine 0.9.32 (wine-0.9.32-1.SoS.2007.0.i586.rpm). Using ultravnc_viewer.exe I saw immediately that the fullscreen title bar that should appear when you move your mouse to the top of the screen was now allways visible also in windowed mode. After a while (4 minutes) ultravnc_viewer stopped working, I could still see the remote desktop but my mouse clicks didn't happen. I went back to 0.9.30.
Dieter