I'm having trouble generating reminders.

I've set up reminder type and there's a template in place, everything appears to be correct. When I go to reporting/reminders and find the reminders for a period, it brings up a list of reminders that are all due to go out, but the final collumn says 'skip' - this i dont understand.

also when i then try to 'send all' and it prompts with 'generate reminders?' and I ok, it says 'no reminders to generate for the selected period'.

obviously I've set something up wrong, but cant see what - can anyone help?

thanks!

Daryl