Yes, the wallet has to be in server mode for the miner to communicate with it. Hence, 'server=1' line in the .conf file.
okay server mode running the wallet and a browser error 127.0.0.1:41677 {"result":null,"error":{"code":-32700,"message":"Parse error"},"id":null}
Spreadminer running and not accepted shares
The Nvidia miner needs Compute 3.0 or above capable cards, I couldn't mine with the 720M in my laptop. What GPU are you running?
Nvidia GT 730 desktop PC
According to https://developer.nvidia.com/cuda-gpus your GPU is compute 3.5 capable so if you're compiling from source you can specify that, see my post here:
https://bitcointalksearch.org/topic/m.9717026
If you're running the Win binary I have no idea, sorry, I don't use Windows. Maybe tsiv can help?