This is an odd bug that just appeared recently in the latest CVS
Compiled 31 - 7 - 2005. On Linux Slackware with OpenGL 2 (Nvidia).

Bug:

When working with the NLA editor setting keys and zooming with the
scrollwheel in this window...the keys (all of them including names)
will suddenly dissappear. They seem to be scrolling really fast up
and out of the display - never to be found again.

What's even stranger is that this seem to only happen with a long
horizontal window that has a small height...4-5 lines of object-keys.
It doesn't appear to happen in a window that has another window next
to it, only when it's alone in one long horizontal window.

It also happens randomly, sometimes not...but quite frequently.