MS Access is giving 'undefined function 'abs' in expression' when.

[Guest]

Ever since I downloaded a datepicker form from a website, I have had problems
with my queries not finding function including abs (absolute value) and
isNull. I also now have a problem with my date defaults on forms not working
properly.

 

[John Vinson]

Ever since I downloaded a datepicker form from a website, I have had problems
with my queries not finding function including abs (absolute value) and
isNull. I also now have a problem with my date defaults on forms not working
properly.

John W. Vinson[MVP]

 

[John Vinson]

Ever since I downloaded a datepicker form from a website, I have had problems
with my queries not finding function including abs (absolute value) and
isNull. I also now have a problem with my date defaults on forms not working
properly.

Oops! Sorry about the premature empty post.

This appears to be the very common References bug. Open any
module in design view, or open the VBA editor by typing
Ctrl-G. Select Tools... References from the menu. One of the
..DLL files required by Access will probably be marked
MISSING. Uncheck it, recheck it, close and open Access.

If none are MISSING, check any reference; close and open
Access; then uncheck it again. This will force Access to
relink the libraries.

This error can often happen when you install some new software such as
your datepicker.

John W. Vinson[MVP]