at first i have to say im not an english native speaker but i try to keep it simple
I downloaded Raptr maybe 1 year ago, at this time i had a hd 6870 an Raptr didnt work ingame.
Can you play the game for at least 20 minutes, and then attempt to record. If it does not record and/or replay as you mentioned, can you send in your logs?
To send to your log files:
1) Open the Raptr client
2) Right click on the Raptr icon in the system tray
3) Click on Help, then Feedback.
4) In the window that appears, check the box at the bottom (Send log file).
5) In the text box, please either describe the issue or paste the ticket number for your issue.
6) Hit send.
7) Post back here when you have sent your logs.
(Note: Make sure that you quit out of any game you are in before you send in your logs.)