Problem doing UHF probe example in HFSS

I've made the UHF probe example in HFSS version 13, manual. But when I simulate it, I find the best return loss occurs at 610 MHz not 560 MHz as the example shows in the user guide. Has anyone else hit this problem?

Dave

An Ansof engineer found the problem with my model, which was somehow missing one of the conductors, which is rather odd as I recall it being there at one point. I guess I must have deleted it, and not noticed this, so the model did not work as intended. After correcting the problem, so the simulation results I got agreed with those from the manual.

Sorry for the noise.

Dave