Can't save in jpeg format

I recently created a Gif, but now I don't have the usual options to save as I did before; including saving as JPG. Is there no simple on/off switch to get out of animation gif mode? 

I try to save as and only have: GIF - gif animation, PDF, AVI, and it repeats in the drop-down menu: PDF and GIF. Also, the option: Export to web is greyed out but this is not a trial version. I really don't want to have to reinstall again. Is this a common occurrence after a crash when trying to save a Gif animation? 

Thanks for any help. Ter