Lyx 1.6.2 and letter (Koma v.2), language g erman: some lines are not shown in pdf…

[jezZiFeR]

Dear listmembers,

in Lyx 1.6.2 I use letter-class (Koma v.2). As language I have  
selected german and everything seems to work fine so far. Except that  
some lines which I have entered are not shown in the compiled pdf:

• telephone-number
• bank-account

The signature is also not shown, but this doesn´t matter for me. What  
do I have to consider to get those lines shown?

Thanks*
Jess