Wrong rounding

[Hman]

I have configured the currency EURO in my shop, to
be rounded with 2 decimal places. When I now enter
new products, that have a value behind the decimal point,
e.g. 8,05 (decimal point is comma) these are stored
correctly in the database, but unfortunately in the catalog
the end-user sees the product rounded to the first decimal
before the decimal point, i.e. 8,05 becomes 8,00, whereas
8,5 becomes 9. I have no clue where I have to look to
fix that problem.

Can anybody help?!