Just my 2 satoshis, but those unpowered ribbon risers are an accident waiting to happen. I strongly advise you to get the powered 1x to 16x ones (usb type cable). You can fit the 1x risers in x16 slots, no problem.
~ Myagui

Check your CPU usage. It's quite likely that your CPU is the bottleneck. If that's the case, you might find that you are better off just mining XCN with 4 cards, and mine something else with the other two (some other algo that doesn't stress the CPU).

EDIT: Then again, the windows build is largely "beta", so I could be completely off... I suppose that the best performance right now is with Linux.
Good Luck
~ Myagui

^
Great Job djm34.
Let's hear those 750ti numbers then.  
~ Myagui

You do realize that there is a public GPU miner available right? And the known private miner is Wolf's, which is topping the performance of the public one by some 10% or so, so definitely not the 'premine' proportions that you're claiming. Big & early holders did get a lot of coins, but have thrown some hefty computing power to mine them before a GPU miner was available, which is perfectly fair.

So in short: a largely new codebase, a lot of completely new features, lot's of testing time, timely pre-ann, timely launch ann, emission rate ~ 50% mined in 10 years. Yep, this is a goner, let's relaunch ASAP.
_{(sarcasm alert)}

~ Myagui

It does, but as it happens with every rally, be wary of the downturn. While I'm very happy to see XCN doing so well on the exchanges, realistically, the nethash should increase by a lot, in order to justify the current price. No concerns here though, I'll stick around through any ups and downs along the way. We are generally bound upwards, as the dev team continues committed. We will surely see sustained growth once we have another pool (or better yet, pools), and once we can get the windows miners onboard.

~ Myagui

You can get the CPU miner at 1GH:
http://xcn.1gh.com/

And the GPU (cuda, linux) source:
https://github.com/MiniblockchainProject/CudaMiner

Happy Mining,
~ Myagui

Question is: Will he still be crying in a few weeks time? 

@ catia & bitfreak!: Please consider running an "official" pool with fees going towards development. This would 'kill 2 birds with 1 stone', as we'd get some decentralization from 1GH, and would also be funding your continued work on cryptonite. Great job with the nvidia miner!

Cheers,
~ Myagui

FWIW: There was a bug with 1GH (the only pool available so far), which was causing effective hashrate for every worker to be 35% to 50% of what it should have been. The pool was effectively wasting hash for all the miners connected by not updating work units correctly. When reorder posted about a fix on their thread, the nethash started a speedy climb to what it is now (with 1GH @90% of nethash within a couple of hours).
I was using a few AWS instances at the time, and could see my hashrate nearly tripled within a few minutes.

Cheers,
~ Myagui

You've come to the right place then! 
Perhaps you should also join #ccminer @freenode IRC.
~ Myagui

You do know that you could just send smaller amounts though, right? Will be the quickest way to move your funds around without any waiting/updating. Going by the transaction size that you posted on that error message, I'd estimate that you can transfer somewhere between 5 to 10 moneritos at a time (assuming the inputs are all of similar size).

My suggestion is that you try gradually decreasing the transfer amount, until you hit something that works, then rinse and repeat. Copy/pasting a transfer command that works (say for 5 moneritos for example), you'll be all done in 30 seconds.

Cheers,
~ Myagui

Make that 250 moneritos and I'll delivery myself!
_{(no no, that's not happening   )}

~ Myagui

I'm pretty sure that calls for an immediate dump. No... wait...
_{(Can't tell if that's brave, or just absurd, but I'm inclined towards the latter... buying right during a massive rally, and then ignoring your investments or the market for a few weeks? Perhaps you should just check-in again on your investments in a few more months!)} 


~ Myagui

Censorship is censorship, regardless of who is doing it.
http://en.wikipedia.org/wiki/Censorship

I also find it very odd that they've been so dead quiet on Monero, but I'm happy that it is so (for now). Global media coverage right now, could bring about a lot of frustration and an unfortunate perception or Monero's potential, since we're not quite ready for the masses to use (still a bit too geeky, daemon bloat, etc).

~ Myagui

#cryptonite @freenode

@djm34, can't you just use 1GH's pool for whatever it is that you need testing? 
Dunno about which version for testnet though, think you need to ping @catia on IRC, and see if he can put up some testnet nodes for you.
Cheers,
~ Myagui

No need to download any SDK. The dll in question can be found for example on the recent unified nvminer releases (see: http://www.cudamining.cc/url/releases). You might also need to update your nvidia driver if using a version number below 340.xx.

Cheers,
~ Myagui 

I think that's about an average of a block every 2.5 days.
Luck is a b!tch though, you might not ever get a block if diff keeps increasing 
~ Myagui

That's what I have, and I got 4 blocks within the 1st 32 hours. Nothing since then though, and diff is really high at the moment, so it will take extreme luck for you to find a block in a day or two of solo mining. I'd say it is worthwhile, if your CPU would otherwise be idle. If you're not the adventurous type, best to wait for pool support (meanwhile you can buy some at the exchanges ).
~ Myagui

Me mining Monero/Cryptonight, with some time on NiceHash now and then. But I suppose that we are mining many things  
Others might have better suggestions for immediate profit if all you care about is the BTC that you can make of it.

Happy Mining,
~ Myagui

- Yes, and this is really the easiest way to get started.
- Run it and it will output instructions. You will need to setup your .conf file if you take this approach, perhaps not the best idea if you've never solo mined before.
- No pools yet.

~ Myagui