667     Eval stack crashed

     Explanation:  The evaluation stack (containing LOCALs, etc.) and/or
     Memvar table has been exceeded, causing an attempt to access a locked VM
     segment in near memory.

     Action:  Some suggestions to resolve this problem are:

     1. Decrease the stack or PROCEDURE DEPTH setting for the linker.

     2. Decrease the number of LOCAL, STATIC or PRIVATE variables in use at
        one time. i.e., use arrays instead of individual variables.

     3. Decrease the number of ITEMS allocated if using ITEM.API of
        CA-Clipper.

     4. Free more conventional memory for use by the VM System.

     Note: There could be an error in the runtime error handler.

     See Also:  Error 650.