if you don't pay anything for electricity, then continue GPU mining until ASICs drop onto the network. Every bit-penny you earn is a good bit-penny. If you're making a dollar a day right now, you should make about $0.50 a day until ASICs hit. Profit is profit...

But, back to your original question. I had no luck getting Litecoin mining going either. So i kinda gave up on it. Maybe when I get my Jalapenos for BTC mining, I'll take another look at LTC mining with the GPU.