I'm trying to make a report card of sorts with Excel 2003. On one sheet
will be where I type everything up -- classes, grades, scores, etc. In
one column (in my case, B, starting with Row 4), I will type in a
letter grade (A+, A, A-, replace A with B~D and F) and the column next
to it (C) will display the corresponding GPA using VLOOKUP. The VLOOKUP
function connects this sheet to another sheet that's aptly called GPA.
In that sheet, column A has letter grades in descending order from A+
to F. The next column has its corresponding point (4.3, 4, 3.7, 3.3, 3,
2.7, etc). I have run into a couple of issues to which solutions to
either one or both will be greatly appreciated.

GPA sheet
A          B
Grade | Point
A+         4.3
A           4
A-         3.7
B+         3.3
B           3
B-          2.7
so on and so forth
F            0

1. When I type in "A", the VLOOKUP cell next to it gives me a #N/A
error. When I type in anything other than B or F, they give a totally
different value (C is supposed to give 2 but gives 2.7 and D gives 1.7
instead of 1). Only B and F give proper values.