I have a surface feature to machine in V4 3axis pro and for some reason it gets to 100% done and hangs there for at least an hour until I canceled it and it crashes Solidworks. There are 8 areas in which to clean out and if I select only those surfaces one at a time it will do them but still hangs for a while on 100% before showing the toolpath. Any ideas what is going on?

Thanks, Forrest