Quote by samstone: My PHP.ini is configured to allow 100mb files, and I can upload to Gallery large files, but I still can't upload it to Filemgmt any files bigger than 1mb.
Sam, I recently resolved some upload issues and I discovered another place to check in addition to the php.ini and your .htaccess file.
If your host server is using a apache (particularly RedHat linux) you should look for the following file to see if it exists:
/etc/httpd/conf.d/php.conf
Inside php.conf there is a directive called "LimitRequestBody" that may actually be limiting your uploads.
Strange that you can upload with Gallery though... anyhow I thought I would throw that out there in case it helps.
Good Luck.