I'm also consistantly getting a lower hashrate on the coinotron website that what guiminer-script is reporting. It pretty much cut my prifit in half today.
What's causing this, is it fixable, how and when ?
If this doesn't get fixed i'll take my workers elsewhere.
All the pools report back like 10 times lower than what CGminer says for me when mining LTC, and I get about 10 times less coins than I should to. It's very frustrating.