When I change my Windows 7 pro x64, display settings, custom text size (DPI) from 100% to something else (like 115%), the McAfee security center help screen then comes up like this. When I change it back to the default 100% then everything looks ok. The columns cannot be resized - they are fixed. If you were wondering what caused that, well there it is.
We reported this last week and they are looking into it, no timeline for a solution unfortunately.