Had same story while a go, i try all methods, just reinstall helpd and now work fine.

Probably I would contact dealer but we are no longer support by them, software has already 7 years so no one will help us, thats why I trying to find answer here, why after reinstall on same maschine where I used to work fine with same Mastercam now I've got problem with Groups when I trying to load up file and I see just Top viev in 2D and every single step making my item disapear . Dont know what to do. i copied all into same folders as was before and even that won't work.

I've got same problem with Mastercam v9.1 sp2, my desktop crash then I reinstaled mastercam and all works fine except View, when I tryin to load up any of filewith model to work on, first what I see is just Top view like in 2D view, then Groups are MASK :OFF , WSC :10, TPlane :10, CPlane :10 , gvIEW :11 , i realy dont know what I've done so far, need to fix and dont know how. But I know that Groups before crashed my desktop all the time after loading items was all on :T , but now I can see only 10 everywhere and whe i press any of GView buttons my item just dissaper and window is blank with just straight green line in the middle of display but none of my item is there, any one can help me?

We use usualy MAKA maschines 5 axis works on us very well.