Hi bobelliottjr,
I've mentioned the following cases,go through them test them all and see if it works or not :

Case I:

• Goto Start-> Run (Or press win key + r)
• Now type Outlook /cleanreminders and hit enter :P

Open outlook and check if it works and if it doesn't then go for Case II

Case II
Create new profile and check if the reminders work or not .
If the new profile works then you need to reconfigure the email account and check the settings properly and then import the old data .

Case III
If you have multiple email accounts then set your current email account as default . To set your current email Account as default G to File->Account settings and Set the defaults.

Feel free to ask further queries
Thanks
~Dex