No graphic after slicing and while printing

Hi, just installed Repeteir-Host on an Atom powered, Lenovo, 64-bit laptop 4gb-memory and win7.pro and all up to date. When I load the .stl I can rotate it, move it etc and all works as expected. After slicing with any of the three slicers I do not get a graphic. The sliders will move but nothing shows. When I send it to the printer it does not show the build in progress. What do I need to do to fix this?