Helli everyone. I just started mining bitcoins yesterday and still need alot to learn and get used to. By the way, my graphic card is RADEON HD5450, Processor Inter Core 2 Quad Q9550 @ 2.83GHz. What Mhash/s rate should I be generating bitcoin at? And are there any tweaks that I can use to increase my Mhash/s?

Thanks in advance.