I figured it was samba related because I assumed samba installed the mount.cifs command and that was the preferred way to mount a windows share.
I see in the tc faq the mount -t cifs //9.53.216.11/myshare /mnt/windows -o user=myname,pass=mypassword
command is recommended. Is one of these commands preferred over the other?
By the way the mount.cifs command syntax I used was:
sudo mount.cifs //computer-name/share /mnt/winxp -o ip=192.168.0.114,username=myusername,password=mypasswd,iocharset=utf8,file_mode=0777,dir_mode=0777
I had to add the "ip=" option because otherwise a dns lookup was occurring (and failing) when I used //ip-address syntax.