Guitar connection to PC not working

[muppet_tizer]

I have a Takamine electro-acoustic with its own battery powered pre-amp. I have connected the guitar to my PCs SiS 7018 Sound Card.

I am using the correct mono to stereo adapter to connect the guitar.

I have tried it with both the microphone input and line input (unmuted) but still no sound came from my speakers. I have set up Volumne Control and Recording Control correctly so I don't think this is the problem.

I then tried connecting it using my amps preamp output but still nothing. The guitar plays fine when connected just to the amp.

When I connect up a standard PC mic to the soundcard it works fine.

I have ran out of ideas. Could it be the sound card driver?? I have the driver for Sis 7018. Is there a problem with this driver

 

[RedStone]

hmm interesting problem indeed. try using a mono adapter instead of the stereo one. There's no real point in recording one guitar in stereo anyway .... it just uses more hard drive space.
so you plugged your mic in and got it going, and then switched to the guitar on the same jack and suddenly no sound?

 

[muppet_tizer]

Ya. I don't think the mono adapter would make a difference. I think its more of a sound card problem but I'm not sure about the SiS 7018 sound card