An upgrade to Captivate 3 might solve at least a part of this
- but having said that, the problem is almost certainly the same
regardless of version. Captivate snaps a shot of the background
anytime it (Windows) senses a trigger action (called an actionable
"Event" in Captivate). Generally, the "event" is the clicking of
the left mouse button.
The problem is that when capturing from a slow connection,
the mouse-click causes the snapshot
before the change in background has completed "rendering" to
your screen. That is the reason for the blank shots ... nothing has
been deleted; in fact, the blank screen shot is an image of the
background caught in the middle of rendering the new background
picture.
The answer to the problem is usually two-fold. First, do your
clicking smoothly and deliberately, and second, use "manual
capture" in addition to the auto-captured images taken by
Captivate. That is, keep one hand on the mouse during recording,
and the other over the "PRTSCR" keyboard key. And listen carefully
to the sound of the "camera" indicating a successful screen
capture, so that if it seems to have come too early for the
screen-background change, you can press the PRTSCR key to manually
create another capture
after the "automatic" one.
Remember that deleting extra (unneeded) slides is simple, but
capturing missed shots (rerecording) can be quite a chore.
Always use manual capture as a supplement to the
auto-recording feature in Captivate, especially when capturing from
a slow connection.
~best of Captivate to you!
Larry