Rejected Shares, I don't get it.

[jmevz]

Hi All,

I'm running cgminer using Radeon 7970 single GPU, trying to mine litecoin. It seems I get two or three shares for each 'block' and then the rest are just stale?

Setup:

Radeon 7970 Single GPU
Pentium R Dual Core 2.50
2.00 GB Ram
32 Bit Win 7
AMD Catalyst Version 12.8

I'm loading cgminer using a bat with the following;

Code:

color 07
cgminer --scrypt -o http://ltc.kattare.com:9332 -u myusername -p mypass --shaders 2048 --intensity 13 --worksize 64 -g 1

Code:

cgminer version 3.1.1 - Started: [2013-05-28 19:45:32]
--------------------------------------------------------------------------------
 (5s):266.8K (avg):358.8Kh/s | A:21  R:15  HW:0  U:2.2/m  WU:348.0/m
 ST: 2  SS: 0  NB: 3  LW: 44  GF: 0  RF: 0
 Connected to ltc.kattare.com diff 127 with LP as user jmevz.litedigger
 Block: e4b38491775ec0be...  Diff:39M  Started: [19:52:47]  Best share: 14K

Accepted Diff 322/127 GPU 0
Rejected Diff 896/127 GPU 0 <unknown-work>

And it continues with changed difficulties...

Any assistance you can provide would be appreciated. Let me know if you need any more information.

Thanks,
J

[luke.watson]

Stale shares - Stales are shares that have been sent after the block has been solved - so basically your rig is mining behind the rest of the pool.

Make sure your internet is up to speed and you might find you'll need to bump up the power of your rig so your shares are accepted faster

http://bitcoin.stackexchange.com/questions/1416/what-are-stale-shares-and-what-can-i-do-to-avoid-them

[lbr]

Also, you should connect with stratum not with getwork using LP.
And your hashing speed is very low.