auto-fill and horizontal scroll

[Yevgeniy Makarov <emakarov@cs.indiana.edu>]

Hello,

I have auto-fill-mode on and default-truncate-lines set to t (so I have 
horizontal scrolling). Then when I type a long line which goes beyond 
the right window edge, Emacs scrolls to keep the point in the window. 
But when I hit space and the word which caused scrolling is moved to the 
next line, the screen is not scrolled back, and all lines are truncated 
on the left. This is inconvenient because I'd like to see the beginning 
of lines. Is there a way to achieve this?

Thank you,
Yevgeniy