Hello,
I'm mining LTC with a Radeon 5850 clocked at 575MHz(1.038v)/700MHz(GDDR5).
CGminer show actual khash 210.4K/s in real time, but Coinotron website it seems very low (like 28K/s).
What's the problem?
This is the command line:
cgminer -d 0 -I 12 -v 1 -w 128 -o stratum+tcp://coinotron.com:3334 -u xxx -p xxx --scrypt
Catalyst 13.2/AMD SDK 2.5/Windows 8.
It is not a block difficulty, it is a share difficulty

ATM there are on average 205*65536 shares (of difficulty 1) needed to solve LTC block.
So you need 205*65536/64 shares on Coinotron's diff to solve a block. (not 2 or 3 )
I mean hashrate on my account page vs hashrate on my client.
i'm not sure what you mean :/
Thanks
(ATM, with pure cgminer client, hashrate seems ok on website).
I have the same problem, Coinotron says 28KH/s. CGMiner says 280 Kh/s.