Need Help on Recording Sound with Replay VC

[cd_kayla]

Hi.

I've the Replay Video Capture on my laptop. It works perfectly, file sizes are really low, records sound aswell and records without any time or mb limit, it is really great. But I've this problem.

When I wanted to use this program on my PC, Im getting this error and I cant record it with sound ; http://i57.tinypic.com/157n7km.png

It works perfect on my laptop and not on my pc is it because I've a microphone attached to laptop ? The other options on Sound tab is just the same, but on my PC Mic is " Not plugged in " while on laptop it is active. Is this happening because of this ?

I'd really but really need help on this, I've no idea how to fix this but I really must. Please help me on this :'(

Regards
Kayla