Hilmar,

It happens when there are unclosed < pre > tags in the message. In Reply you can see that there's at least one < pre > tag w/o following < /pre > tag.

>I have started noticing today that the first characters of some messages are missing. When I press "Reply", I get the complete message.
>
>It doesn't appear in all messages. It may be in messages where I am involved, but I am not sure. As an example, I see this in message #925035.
>
>It is the first 4 or 5 characters that are missing.
>
>Using Opera 7.51.