According to url http://msdn.microsoft.com/library/default.asp?url=/library/en-us/vbaxl11/html/xlproApplication1_HV05199218.asp
if you want to add a comment to a cell in excel, you do
With Worksheets(1).Range("e5").AddComment
.Visible = .F.
.Text = "reviewed on "+mdy(Date)
EndWith

When I try this, it will take the .Visible, but I get the error:
OLE error 0x80020003: Member not found
on the .text

When I open a test .XLS file that has a comment, I can print it uding
?Worksheets(1).Range("E5").Comment.Text
but again I can not change it.

How do I do this?