Hi,

SET MULTILOCK ON

CREATE CURSOR TestBufferI (A I NULL)
INSERT INTO TestBufferI VALUES(3)
INDEX ON NVL(A,4) TAG IX1
INSERT INTO TestBufferI VALUES(NULL)
=CURSORSETPROP("Buffering",5)


CREATE CURSOR TestBufferC (A C(2) NULL)
INSERT INTO TestBufferC VALUES('33')
INDEX ON NVL(A,'44') TAG IX1
INSERT INTO TestBufferC VALUES(NULL)
=CURSORSETPROP("Buffering",5)

******************

CREATE CURSOR TestBufferY (A Y NULL)
INSERT INTO TestBufferY VALUES($3)
INDEX ON NVL(A,$4) TAG IX1
INSERT INTO TestBufferY VALUES(NULL)
=CURSORSETPROP("Buffering",5)

* NO ERROR ON VFP6SP5
* ERROR ON VFP7SP1 AND VFP8
* "Index does not match the table.
* Delete the index file and re-create the index"

with

INDEX ON $4 TAG IX1 the error appears.
INDEX ON A+$4 TAG IX1 the error appears.
INDEX ON A TAG IX1 the error not appears.
INDEX ON A+NTOM(4) TAG IX1 the error not appears.

The the problem is with currency costant value on index expression.

Fabio