Hi all,
stupid problem: I need to SUM column F (F5 till F80) to get a result (result Sum in B3). I use =SUM(F5:F80)
Some of the fields in F are empty. This worked fine, but recently I have an issue when adding an extra number in for ex. F22 (which was previously empty).
It should Sum fine, but I get a syntax-error.
The funny part of the problem: when I double click the syntax-error and press enter again (to confirm the SUM formula in the field), it works fine again (until I add another number in F column, same problem).
After enter.
Very frustrating. 
TECHSPECS: wordpress environment, Chrome 36.0.1985.143 m
Saldo issue is based on the syntax-error so no problem there.
Any idea?
greetz & tnx.