Why won't the program allow me to enter my 1099R information?

What do you mean?  What happens when you try to enter the form?  Are you using this procedure to enter the Form 1099-R?

To enter, edit or delete a form 1099-R -

• Click on Federal Taxes (Personal using Home and Business)
• Click on Wages and Income (Personal Income using Home and Business)
• Click on I'll choose what I work on (if shown)
• Scroll down to Retirement Plans and Social Security
• On IRA, 401(k), Pension Plan Withdrawals (1099-R), click the start or update button

Or enter 1099-r in the Search box located in the upper right of the program screen. Click on Jump to 1099-R

Don't enter the bank or broker name and don't try to import it.  It is just as fast and easy to manually enter it.  At the bottom pick -  Change How I enter my Form

Then on the next screen pick I'll Type it in Myself