David Laight wrote:
> 
> What exactly do you mean by 'wrapping at the bottom'?
> 
> Is the error in just a small number of lines
> Are the rest of the lines in about the correct place on the screen?
> Are there undrawn lines at the top of the screen?
> Is the first pixel of each line visible?
> Is the last pixel of each line visible?
> 

While I'm at work I don't have access to somewhere on the net, otherwise
I'd link to a screenshot. Instead I'll try and decribe how the screen
appears in ASCII:

+-----------------------------+
|                             |
|                             |
|                             |
|                             |
|                             |
|                             |
|                             |
|-----------------------------+ -> this is where the display "wraps"
|                             |    from the top
|                             |
+-----------------------------+

Aproximately 10% of the bottom of the screen duplicates the top ...
So if I open a terminal window and move it off the top of the screen,
this happens:

+-----------------------------+
|                +----------+ |
|                |          | |
|                |   term   | |
|                |          | |
|                +----------+ |
|                             |
|                             |
|-----------------------------+
|                +----------+ |
|                |          | |
+-----------------------------+

So the top of the screen is repeated at the bottom. If I move the
terminal window up as far as the cursor will go, then the top of it
disappears completely:

+-----------------------------+
|                |          | |
|                |   term   | |
|                |          | |
|                +----------+ |
|                             |
|                             |
|                             |
|-----------------------------+
|                |          | |
|                |          | |
+-----------------------------+

Chris
-- 
chris.wareham@iosystems.co.uk (work)
chris.wareham@btopenworld.com (home)