We have the old Vtune 9.0 at our office. When I tried it for sampling, i did not get the "clock ticks" or the "cycles per retired instructions" graph. I only got the "retired instructions" graph.
I used it on Vista SP1 32bit.
I know Vtune 9.0 (or 9.1 for that matter) does not support Sandybridge CPU. Is this the reason for this result, or could there be something else?