mouse arrow (insertion point) disappears for a while (macemacsjp-english 752) - MacEmacs JP

Hi,

GNU Emacs 22.0.90.1 (i386-apple-darwin8.8.1, Carbon Version 1.6.0) of  
2006-10-28 on petit.local
Mac OS X.4.8

the mouse arrow (that becomes an insertion point when dragged over  
text) dissappears for a while after editing a html file (HTML helper  
mode).

In Apple Mail the mouse arrow freezes for a few seconds once upon a  
time (although it does not dissappear).

Do you see anything like that ?

Cheers

MacEmacs JP