Trying to find something in the forums for Mach4 is very difficult. The high level partitioning of Mach4 helps, but the search tab still searches everything, so a keyword finds a lot of Mach3 info and then it becomes difficult to find something that works for Mach4. Since Mach3 and 4 are really different, there should be a way to restrict searches to only the Mach4 portion of the forum. Using Mach4 as a keyword does not always work. As an example, searches for "USB camera" get lots of hits, but they are almost all Mach3 and so it is difficult to find a mach4 post if it exists. When I add Mach4 as a keyword, I get no hits which seems unlikely.