I'm using the 5003 build and I found some issues regarding the attachments.
First of all, on Solutions, the only file types that I'm able to open (after attached) are .HTML or .ZIP files. If I attach a .DOC file and try to open it directly, I receive a page that says "The File was not found".
Other issue is regarding the file size, that it sounds be limited by 3 MB. Is there an option to increase this limit?