Pages 4.3 (latest update for iWork '09 afaik) constantly crashes (closes and shows "unexpectly quit" crash report) on a new iMac 27" (Late 2013) running 10.9 (.2) Mavericks
The crashes seem to be comepletely intermittent. Sometimes when writing, pasting text, dragging images.
Here are some crash reports:
http://pastebin.com/xTszDwNG (latest one, this one was when a image was dragged into pages)
http://pastebin.com/k9NsMFpt
http://pastebin.com/kYxh71np
http://pastebin.com/TUMQctDL
The latest one:
http://pastebin.com/g142aypG
This one happened after I completely reinstalled the machine (formatted the drive, installed mavericks over restore partition, created a new user, installed iwork from disc and installed 4.3 update and then dragged over my personal documents via a usb drive)
EDIT
I ended up updating to the new versions of pages since I couldn't get the bug to be fixed.
Best Answer
Slightly off topic, but with Mavericks installed, you can update to Pages 5.1 for no charge and maybe your problem will not occur.
http://www.macworld.com/article/2056159/what-you-need-to-know-about-apples-free-apps-policy.html