Is anyone else seeing high CPU usage? I have 70% + being used on a quad core, for example. Mining BeamAlgoII
Can't post an image as I apparently still do not have enough cred

On the bright side, the latest version has been completely stable for me and I see maybe 1 rejected share every few days. Great work!
In some rigs, this problem occurs with the latest version of the Nvidia driver. Try rolling back the driver version to an older one.