Edit Image without Preserve original

I run every test on G2 5 jan 2003 build wrote in the read me file. Then I test by myself.
When I don't tick the box " Preserve original image" while editing image i get :

<!-- BBCode Start --><TABLE BORDER=0 ALIGN=CENTER WIDTH=85%><TR><TD><font class="pn-sub">Code:</font><HR></TD></TR><TR><TD><FONT class="pn-sub"><PRE>
Warning: Missing argument 4 for rotateimage() in /Library/WebServer/Documents/gallery2/modules/netpbm/classes/NetPbmGraphics.class on line 125
Error (ERROR_BAD_PARAMETER)

* in modules/netpbm/classes/NetPbmGraphics.class at line 145
* in modules/core/ItemEditImage.inc at line 119
* in main.php at line 90
* in main.php at line 30 </TD></TR></TABLE><!-- BBCode End -->
Under mac os x 10.2.2 with PHP 4.3
Hope it will help.