1070

Summary:	Invalid Variable name
Cause:	Undefined variable name. A variable name was specified that was either invalid or not defined. One situation where this error can occur is when a FORM variable is not defined. In the following example, the variable P is used to identify the POS position. If P is not previously defined, this error will occur during execution: PRINT USING "FORM POS P, N 12.2": D Break used in conjunction with an otherwise unused variable or internal function (like fkey)
Remedy:	Change the variable to a literal or define the variable. Check the spelling of the variable.