HELP - with recording

Suddenly, Audacity will not record from my tape recorder more.
It record fine from my laptops internal microphone, but not from the tape recorder.
I have probably changed some setting, but cannot find out where.
An help?

Forgot to mention, that other software can record it, so the cables are ok

Try working out to what input of the computer the tape deck is connected, then choosing that input in Device Toolbar - see here to read about Device Toolbar .

If other software can still record from the tape deck, try choosing Microsoft Sound Mapper - Input or Primary Sound Capture Driver.

If other software can no longer record from it, go to the Windows Control Panel for sound and see if the input you are connecting to is enabled. If it is enabled, unmute it and turn the volume up.