my reason 5 will be working fine when all of a sudden it will only allow me to hear one of my instruments, itll show the "note on" light and even allow me to record what ever i want but i wont be able to hear it. its a real pain in the ass, anyone ever had this problem?

1. Did you make sure you used an Mixer? Use any Instrument/tool and press "tab". Connect the cabels now.

2. Your speakers are bad.

3. Your soundcard doesnt work with Reason, check it out in the forums of the company.