Shoutbox

Hi!

I'm using WLM 8.5 and Plus 4.80, and I'm having a weird problem:
I open a chat log, but only first 5000 lines are displayed, than there's white until the end of the file.
On the left of the log window there's the date/time index and it is complete, but it works only for first days.

But the file isn't blank, if I open it with a web browser or a text editor I can read it until the end.

I started having this a few days ago, with the 4.70, I updated it to the 4.80 but nothing changed.

And this happens with all long conversations (even with files of months ago that worked...)