Crashes browser

I have configured a custom content type with imagefield and image_fupload. When I try to upload three images to the node, the browser crashes. I start by selecting three images to upload. Then I click Save at the bottom of the page. The upload progress bar for the first image completes successfully, and the thumbnail derivative I configured appears in the file directory. When the progress bar for the second image begins to draw across the screen, the "images in queue processed" progress bar unexpectedly starts to draw. The browser starts to load the next page, even though the second image out of three is still being processed. When the "edit captions" page loads, the browser crashes. I have attached screen shots showing two of these steps.

I am using Mac OS 10.5.6 with Camino, Firefox, and Safari (tried all three), version 10.0.22 of the Flash plug-in (updated today to the latest). Drupal version is 6.10. Imagefield is at 6.x-3.0-alpha4 and ImageCache at 6.x-2.0-beta8. Optional Drupal modules are:

autosave date image img_assist messaging scheduler views
blackbaud devel imageapi jquery_media nice_menus signup
calendar emfield imagecache jump notifications simplemenu
cck fckeditor imagefield ldap_integration prepopulate slideshow
content_access filefield image_fupload lightbox2 print token

Thank you for developing this module and for your work on these issues!

Richard