I tested with these parameters
cudaminer.exe -l K14x32 -C 1 -m 1 -i 0 -H 2 -o stratum+tcp://eu.hashing.at:3010 -O -u xxxx -p xx
and does not work, just goes
[2014-03-23 20:20:53] GPU #0: Launch config 'K14x32' requires too much memory!
[2014-03-23 20:20:53] GPU #0: using launch configuration K14x32
[2014-03-23 20:20:53] GPU #0: cudaError 30 (unknown error) calling 'cudaStreamQuery(context_streams[stream][thr_id])' (D:/Christian/Documents/Visual Studio 2010/Projects/CudaMiner/salsa_kernel.cu line 958)
[2014-03-23 20:20:53] GPU #0: GeForce GTX 750 Ti result does not validate on CPU (i=0, s=0)!
you know as fix this?
play with K14x32 try lower it K14x4 or K14x8
K14x4 runs ok but not think it's right that the results are very poor.
[03/23/2014 21:06:03] Stratum detected new block
[03/23/2014 21:06:03] GPU # 1: GeForce GTX 750 Ti, 66.32 khash / s
[03/23/2014 21:06:03] GPU # 3: GeForce GTX 750 Ti, 64.44 khash / s
[03/23/2014 21:06:03] GPU # 0: GeForce GTX 750 Ti, 64.27 khash / s
[03/23/2014 21:06:03] GPU # 2: GeForce GTX 750 Ti, 15.63 khash / s
[03/23/2014 21:06:03] GPU # 5: GeForce GTX 750 Ti, 15.60 khash / s
[03/23/2014 21:06:03] GPU # 4: GeForce GTX 750 Ti, 15.67 khash / s
[03/23/2014 21:06:10] GPU # 3: GeForce GTX 750 Ti, 64.29 khash / s
[03/23/2014 21:06:11] accepted: 3/3 (100.00%), 241.78 khash / s (yay!!)