To be honest, I couldn't search for already reported bugs real good bc I didn't
know what to call this line... I searched for "screen line" which didn't come up
with any relevant results.

I am using Ubuntu 6.06, Gnome 2.14.3, but this happens with both ubuntu's OOo
2.0.2 and OOo 2.0.3 that I downloaded from your site and installed to /opt suing
directions from http://www.oooforum.org/forum/viewtopic.phtml?t=26173&highlight= . 

Now the issue:
1. open a writer document
2. Change indent using the gui tool (marked in the screenshot I'm gonna attach
with <-->)
3. Watch as a vertical line is created (marked with a circle in attached file)
4. scroll down or up until you don't see the line anymore and the line dissapears.