This was a bug in amd drivers, miner works only with latest drivers, I added the following info to OP:
You need latest drivers to use this miner. Known to work on 14.9 installed from file named amd-catalyst-14-9-win7-win8.1-64bit-dd-ccc-whql.exe from http://support.amd.com/en-us/download/desktop?os=Windows%207%20-%2064

This is strange but here are some nodes:

You can see it in block explorer and at coinmarketcap. I will look at getinfo call to see if it can be improved.

Sorry for this, I messed up something. Now it is there.

You can mine to a specific address as described in OP. This way you don't need to unlock the wallet. To do so:
1. Use existing or better generate a new address.
2. Open debug console (Tools -> Debug Console) and enter:
3. You will get your private key. Then open spreadcoin.conf or create it if it doesn't exist (D:\Users\<username>\AppData\Roaming\SpreadCoin\spreadcoin.conf on Windows) and add the following line:
4. Restart your wallet if it was running.
In the Mining tab you will now see notification that all mined coins will go to this address.

Only 18 people voted: https://bitcointalk.org/index.php?topic=868918
Come on, there are hundreds of us, go and vote or I will buy 1000 gpus and will mine all coins

There is one at MultiFaucet: http://www.multifaucet.tk/index.php?blockexplorer=SPR&top_addresses=100 but it is full of adds.

E.g if you hahrate is 2 mh/s and network hashrate is 300 mh/s then you will get on average 1 block every 150 minutes. So just divide network hashrate by your hashrate and you will get average intervals between your blocks in minutes. But in reality this is random process, so the actual spacing can be very different from average, you can get nothing for a long time or several blocks in a row. Current reward per block is 6.42 SPR.

Hashrate of built-in miner is low because it is CPU only, my CPU gives 120 kh/s which is 1 block in 1.5 days.

What do you want to tell us by posting these pictures? That GPU miner is infected with virus? Then just try to test original sgminer or any other crypto miner and you will see that they are all "infected". You can even inspect the source code, find no malicious code, compile it but antiviruses will still find something bad inside. The truth is that developers of antiviruses think that their users don't need to mine crypto and any miner probably comes from some bad guy who wants to use their hadrware for mining. Probably there are some botnets which are used for such things so this is not always wrong.

Old one works well, no need to upgrade if you don't want to.

Here comes the new version, with logo and difficulty graph (thanks to Palmdetroit and gjhiggins for their contributions).

Download (version 0.9.15)
Windows wallet (32-bit)
Windows wallet (64-bit)
Linux wallet (32-bit)
Linux wallet (64-bit)
Mac OS X wallet

Source code



Don't forget to vote for logo: https://bitcointalk.org/index.php?topic=868918
and for adding SpreadCoin on C-CEX: https://c-cex.com/?id=vote

ANN thread: https://bitcointalk.org/index.php?topic=715435

AMD miner was developed by me while Nvidia one by tsiv. SpreadCoin can be mined only with solo mining, there can be no pools.

AMD GPU Miner
Windows binary: http://spreadcoin.net/files/Spread-GPU-miner.7z
Source code: https://github.com/girino/spreadcoinx11-sgminer

Don't forget to read included readme, it describes how to launch it. Even if you did solo-mining before it is still worth reading.

Nvidia GPU Miner

Happy mining  

Voting with one vote per user can produce incorrect result.
Consider the following example:
1. 30% prefer logo A but also like logo B and hate logo C.
2. 30% prefer logo B but also like logo A and hate logo C.
3. 40% prefer logo C.
Obviously logo A will get 30%, logo B - 30% and logo C will win with 40%. Logo which is hated by 60% of voters will win, 60% would prefer either A or B instead. This is why two-round voting systems are usually used to elect presidents (not the case for my country though where the same guy wins all elections).

Why can't you vote?

Voting for logo has just started: https://bitcointalk.org/index.php?topic=868918

Here are all the logos submitted for contest:

I hope I didn't forget anyone.

Voting will be launched soon.

Fixed on github.

How will you set up a pool so that miners will not steal money from it?

I get around 550 kh/s on R9 280x with these settings:Some say that increasing intensity can double your hashrate.

I have 14.9. Installed from file named amd-catalyst-14-9-win7-win8.1-64bit-dd-ccc-whql.exe http://support.amd.com/en-us/download/desktop?os=Windows%207%20-%2064

There is a difference in version. You have
cointhinkers:
casper77:

While I have:

My version is newer. I can suggest you to update your drivers.

Yes, and I also don't like it.