Any way to e-file "return not transmitted" message?

[egray]

Attempting to e-file return says "return not transmitted" with no error code or rejection detail. Any ideas on what is causing the problem?

[IRonMaN]

Reboot your computer.  Open up the files and run a review.  Convert for e-filing and transmit,  if that doesn’t do it we will have to figure out plan C.

[egray]

Thank you for the reply. 

I did try updating & rebooting.  

Turned out, it was Schedule D worksheet.  

I have 1099-B PDF attachments and apparently question needs to be checked "No". 

I had checked "YES" and it wanted me to send attachments by mail.  

That seemed to work and return was transmitted.