Report scheduler not working?

Report scheduler not working?

I previously set up a number of scheduled reports (more than 20) and they are all still running. Now, when I try to set up a new scheduled report, all of my reports aren't listed (just 20 are listed) and I cannot set up a new schedule. Is there now a limit on the number of scheduled reports I can set up? I am on the Old Enterprise schedule.
Thank you.