[Freesurfer] freeview problem

Hi,

When I try to run freeview on my ubuntu 13 machine, running the nvidia 5.0 cuda drivers, I get the following errors:

Xlib: extension "NV-GLX" missing on display "localhost:10.0". Xlib: extension "NV-GLX" missing on display "localhost:10.0". Xlib: extension "NV-GLX" missing on display "localhost:10.0". Xlib: extension "NV-GLX" missing on display "localhost:10.0". X Error: GLXBadContext 150 Extension: 143 (Uknown extension) Minor opcode: 5 (Unknown request) Resource id: 0x8000c0 X Error: GLXBadContext 150 Extension: 143 (Uknown extension) Minor opcode: 5 (Unknown request) Resource id: 0x8000c0 X Error: GLXBadContext 150 Extension: 143 (Uknown extension) Minor opcode: 5 (Unknown request) Resource id: 0x8000c0

Any suggestions on how i can fix this problem?

Thanks!

Sal