Alright, Dan...If you're at the point where you'll listen to me, make sure you save a copy of your menu files somewhere else as a backup.
Here's mine:
***POP0
**SNAP
// Shift-right-click if using the default AUX2 and/or BUTTONS2
// menus.
[&Object Snap Cursor Menu]
ID_Tracking [Temporary trac&k point]_tt
ID_From [&From]_from
ID_MnPointFi [->Poin&t Filters]
ID_PointFilx [.X].X
ID_PointFily [.Y].Y
ID_PointFilz [.Z].Z
[--]
ID_PointFixy [.XY].XY
ID_PointFixz [.XZ].XZ
ID_PointFiyz [<-.YZ].YZ
[--]
ID_OsnapEndp [&Endpoint]_endp
ID_OsnapMidp [&Midpoint]_mid
ID_OSNAPBTWN [&Between]_'btwnID_OsnapInte [&Intersection]_int
ID_OsnapAppa [&Apparent Intersect]_appint
ID_OsnapExte [E&xtension]_ext
[--]
ID_OsnapCent [&Center]_cen
ID_OsnapQuad [&Quadrant]_qua
ID_OsnapTang [Tan&gent]_tan
[--]
ID_OsnapPerp [&Perpendicular]_per
ID_OsnapPara [Para&llel]_par
ID_OsnapNode [No&de]_nod
ID_OsnapInse [In&sert]_ins
ID_OsnapNear [Nea&rest]_nea
ID_OsnapNone [&None]_non
[--]
ID_Osnap [&Osnap Settings...]'_+dsettings 2
I also have my BTWN lisp loaded in my Startup Suite. Mine works flawlessly. Take that advice for what it's worth...
Take Care,
Mike