http://bugs.winehq.org/show_bug.cgi?id=22415
Jeff Zaroyko jeffz@jeffz.name changed:
What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED Resolution| |INVALID
--- Comment #6 from Jeff Zaroyko jeffz@jeffz.name 2010-04-19 20:44:50 --- Resolving invalid.
If your system freezes, it's usually Wine triggering a bug in your video driver. Try updating to a newer version, if the problem still persists consider filing a bug with nvidia.
You could also look at your dmesg or xorg log from the previous boot to see if anything was written which may give a hint.