cgminer fails to start with error "error opening terminal: dumb" I'm using Windows 8 x64. I've downloaded the latest cgminer (3.4 at this time), but when ever I try and start it I get the error message:

Error opening terminal: dumb


I've seen various post that suggest this relates to the TERM env var and setting this does change the message to end with what ever is in TERM, but nothing I've tried fixes it. Anyone know what I need to do to get this working?
I had the same problem and for me it worked to set the TERM variable to nothing directly before you execute cgminer. Like this in the cmd shell:

set TERM=
cgminer-nogpu.exe ........

If you set it to "" (meaning nothing) in the system settings it will use the default value "c:\windows\system32\cmd.exe". You can check the the variable in the shell with:

echo %TERM%

I hope this will help you :)