i assumed i had plugin troubles and i tried the trick of renaming the plugins folder to plugins_old and making a new plugin folder. it did not work.
so i reinstalled wp from my zip file, and just updated the wp_content folder since i had a theme in there i had customized.
still the white screen.
i had prior to this tried to delete two plugins from ftp, albumize and kpicasa. i got an error stating the were in use and could not delete them. so i just gave up on that. the folders were empty but they were still there.
i don't know what happened. how could i be getting a white screen after a reinstallation???