wine users - Mar 2011 - PB Unhandled page fault on read access with a Radeon Driver

Hello ,
I heard some people had trouble with ati radeo fireGL before in wine getting a
Unhandled page fault on read access. I have the same problem , i get on spike2 a
Unhandled page fault on read access when trying to access a very important
feature ,except i have the open radeon driver. Does someone know a solution?
Thanks to all