Sharepoint Upload Size Limit Needs Increase
As noted in other posts, Comcast customers find the 50MB limit too restrictive.
This message is a request to have the limit increased.
See Microsoft KB -
Error "Request timed out" when you try to upload a large file to a document library on a Windows SharePoint Services 3.0 site
Clearly indicating limit can be increased up to 2,047 megabytes