With cudaminer I am getting a reject rate as high as 25%, anyway I could fix this? For an ati card what would be a good miner to use for clevermining? What kind of rate could I expect to get for a ati card that costs around $350?

Just started up a cuda miner ( https://bitcointalk.org/index.php?topic=167229.0 ), and I'm getting results on the website but the miner is running at 70 khash/s, 1000 times slower than with GUIMiner running in Default mode, the problem seems to be GUIMiner but I really dont want to have to mine at 70 khash/s. I have tried to use software like cgminer and BFGMiner but they won't recognize my gpu, which is made by Nvidia, yes I know it's not the best idea to use an Nividia gpu for mining but it's all I got. Can someone suggest a bitcoin OpenCl miner that works with Nvidia gpu's?

I am using GUIMiner, I left it running for the night and it says close to 700 shares accepted yet the website still says I did nothing, I can look at my stats now. What would be the reason for this?

Is this a temporary problem with clevermining or is it permanent and I will never see my stats?

Been mining at about 70 Mhash/s for several hours now, I still can't view my stats. When I look up my bitcoin address, I get the user not found error, any reason why after several hours the website still can't find me? Address is "15FArTee1HG4Y98xoyG6vuGc5SnTXpKZqC".