I haven't tested this, so shoot me if I'm wrong
Looking at your original code. I thought it might be better if you called the preload command after you commited the camera changes rather than before.
Have you tried?
<table border="0" align="center" width="95%" cellpadding="0" cellspacing="0"><tr><td>Code Sample </td></tr><tr><td id="CODE">_camera camCommitPrepared 0
_camera camPreload 1
Worth a try I suppose.