nvidia-settings--system lock

Binary package hint: nvidia-settings

Hey guys,
  ubuntu natty 11.04
nvidia settings

 When openening nvidia-settings.. and x server configuration... nvidia-settings freezes... system is nearly frozen ..hard driver and cpu at max

this is the read out from terminal;

Gdk-ERROR **: The program 'nvidia-settings' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadAlloc (insufficient resources for operation)'.
  (Details: serial 1501 error_code 11 request_code 53 minor_code 0)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)
aborting...
Trace/breakpoint trap

coz