CIFS share Readable & Writeable in Windows, but only Readable in Linux

I followed the instructions in the FreeNAS 9.x Video Series (http://www.freenas.org/about/videos.html) and created a CIFS share. The share is readable and writeable in Windows 7, but only readable in Linux (Ubuntu 13.04 upgraded to 14.04). I installed the cifs-utils package, and I've tried mounting it with both Nautilus and also at the command line (with almost every variation of the mount command I could find on the internet, which was applicable). I'd be grateful if someone...

CIFS share Readable & Writeable in Windows, but only Readable in Linux