My DD started solids at 3 1/2 months. She was ready for it, reaching for food and wanting to try our own meal. So we started with mashes (pear and apple at first, then the usual slow introduction of different mashed vegies). I kept breastfeeding all the time though. I think that we should follow our own child pace... mine was early, but she shown all the signs of interest, so we started.
Who knows what will be with the next one... they are all unique.
She is a healthy 18 months old child now and eating everything (loves fruit and vegies and crazy for cheese).
Just trust your instinct and your baby, she will let you know when ready for solids.
xxx