Manual customizations are saved in a file named *.XLB
XL2000 and 2002 *.xlb file will be in Documents and
Settings\yourname\application data\microsoft\Excel and be Excel9.xlb
or Excel10.xlb
Excel 97 in C:\Windows and named username.XLB
Ecel 2003 same as 2000 and 2002 and named Excel11.XLB
Perhaps this file is going astray? If on a server, this can happen.
Also if on a server, you may not have permissions to save. See your IT guy or
Administrator.
Search for *.xlb and see what you come up with. When you get your
customization done, make a backup copy of the *.xlb file.
One more fact about *.xlb files. If they become too large, they
have been known to cause problems with Excel.
Gord Dibben Excel MVP