Version:            (using KDE 4.1.3)
Installed from:    SuSE RPMs

Reproducibility: Usually

Steps to reproduce:

1. Open a longish PDF document (say, 15 pages).  I haven't tried with other document formats.
2. Scroll to somewhere in the middle of the document.
3. View->Orientation->Rotate left

Observed results:

4. Okular usually jumps to another page -- often to the last page in the document.  (If it doesn't, try repeating a few times from step 2 or from step 3.)

Expected results:

4. Okular should remain on the same page.