[orca-list] Why does the caret get stuck when composing emails?

[hermann <meinelisten onlinehome de>]

Hi,
when I compose a mail in various mailers - such as Evolution or 
Seamonkey - I have to observe, that the caret is not moved properly by Orca.
In Evolution it gets stuck at the top, and when I've finished writing, I 
have to wait till Orca has spelled out the whole text. Then I'm able to 
reread the mail.
In Seamonky the caret gets placed in an empty line, but  in fact it is 
in the first line of the text; I see this when rereading the mail. When 
I move the caret, it starts from the beginning of the text.
What may cause this? Can anyone confirm this?
I use Evolution 2.24-5, Seamonkey 2.0b1pre and Orca 2.26.1; I use German 
grade2 with Liblouis 1.6. Could this have an influence?
Hermann