Hope this hasn't been answered b4, but... Mach2 screen doesnt fit on my monitor except for higher resolutions,which in turn make it too hard to read.
Worked fine on my laptop, but I bought new desktop so I could use THC.
Get a bigger monitor. There may be some smaller size screen sets available for download on the Yahoo group.
Mach3 2010 Screenset
(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management)