/snip/
Where is this quarkcoin.conf file located exactly? Searching the computer finds nothing. Nothing in the wallet data folder or the folder that launches the wallet executable.
It does not exist by default, you must create it at %appdata%/Quarkcoin/quarkcoin.conf (wallet data folder)
what card gets the best hashes?
Radeon 5000 and 6000 series cards run great. The best single die gpu would be 6970,
I think