Apply formula to cell opens browser tree

[ipbr21054]

Hi,
In cell K33 i have pasted the following code.

=SUM('INCOME (1)'!G32 -'EXPENSES (1)'!K32)-MILEAGE!C32

When i then hit enter *** opposed to see the code apply itself & return a value the browser tree opens and advises me to update value income 1

Whats happening ?

Thanks

 

[Fluff]

Do you have a sheet called INCOME (1)?

 

[ipbr21054]

Yes i do

 

[MARK858]

With the spaces between INCOME and (1)? and if yes are they the correct number of spaces?

 

[Fluff]

Also check for any leading/trailing spaces