Thanks, that makes me feel better   Sometimes I get 112 kh/s then I disappear again.  Is this normal?  I just have a dual core processor... AMD phenom II X2 565 3.40 Ghz

Do my results sound correct for that processor?  Thanks so much for your help 

Also, I'm trying to compile ig0tik3d's latest version on Ubuntu and it seems I'm missing a install.sh and don't know where to find it.  Can anyone help, it's not in the package ??

Thanks