nVIDIA's shadowplay won't record the shadowtime! Red slash/line through the icon!

[Spaurtacus]

I can record manually but not the shadowtime. This is what the red slash/line looks like:
http/image15-c.poco.cn/mypoco/myphoto/20131029/23/6455684820131029233753052.png

My rig:
Gainward GTX 770 2GB
i5-4460
8 GB ram
1080p, 144Hz
Win 8.1
Driver version 337.88 (newest i guess)

 

[Spaurtacus]

Solved the problem! Just un-install then install it a lot of times!

 

[vaneajta]

Solved the problem! Just un-install then install it a lot of times!

What do you mean by it? What are we suppose to uninstall and reinstall?