[Wylug-help] Laptop External Display

[Smylers]

Hi there.  I'm running Ubuntu 7.04 on Dell X300 laptop, which has an
Intel 855 graphics card, and I'm wanting to use it with an external
display.

Pressing Fn+F8 once to switch to an external display works fine.

But I'd like to have output on the laptop's screen as well.  Pressing
Fn+F8 a second time restores the laptop display but makes the external
display go very wriggly: text shimmers, making it very hard to read, and
straight lines like window borders are decidedly not straight.  This has
happened to me with both a projector and an LCD monitor.

Using the i810switch program yields a similar result, except that the
external monitor is always wriggly regardless of whether the laptop
display is enabled.

Has anybody got any suggestions for how to project non-wrigglyly while
still having content on my screen?

Secondly, is it possible to have different content on the two screens,
so I can have a full-screen Totem or Audacious visualization plug-in on
the projector while other things are on my screen?

Thanks for any help you can offer.

Smylers