File saving in GnuCash 1.6.2-1

[Mark Boysen]

I installed Gnucash 1.6.2-1 from the RPM included with RedHat 7.2. 
 After considerable reading, I used the Setup Druid to set up beginning 
accounts and entered a small amount of data. Then I clicked on the Save 
icon, which presented a  Save window - which I could not figure out what 
to do with - so I clicked on OK. An Error window popped up, saying "An 
error occurred while processing /home/Mark/". I clicked on the included 
"OK" button to return to the "Accounts - GnuCash (/home/Mark/)" window. 
I have repeated this process numerous times, with variations, but all 
with the same result. I have also closed GnuCash, then reopened it and 
tried to "Open " the file, but, of course, it was not there!!! In the 
"Save" window, the "Files" subwindow contains a file, '-binfmt.bkup' and 
some 'translog.  ...  .log' files, but when I look at them, they are all 
empty. There is no "Help" button with this window, and I don't know what 
I am supposed to do in this window.

I'm not sure this is the proper place for this question. The 
documentation said that there is a bug report form on gnucash.org 
website, but I found neither that nor FAQs.

Thanks, in advance,
Mark