I'm getting a strange error in Excel where I cannot enter formulas:

```
=ROUND(1.5,0)
```

gives an error:

The formula you typed contains an error

I presume it has something to do with the (*red herring*) fact that I am in a locale that uses:

`.`

for decimal point`,`

for digit grouping`,,`

for list separation

How do I enter these formulas in Excel?

**Update**: semi-colon doesn't work:

`=ROUND(1.5;0)`

? – Mehper C. Palavuzlar Sep 9 '11 at 15:19