B.,
My son is almost 5 and would not touch the single grain cereals from Gerber with a 10 foot pole. It didn't matter what I mixed in or what I did to it he *Would. Not.* eat it. He'd take one bite and spit it out then refuse any other offerings.
My daughter is 17 months and would not touch Gerber pureed fruits with that 10 foot pole. Almost like magic on, or near, her first birthday she started accepting them, but they weren't her favorite by any means. She also had reactions to many of the fruits that we gave her. My son reacted to the sweet potatoes.
1) it takes at least 10 introductions of a "new" food before a baby/child will decide if they like it or not. Don't give up.
2) I think kids instinctively know what they are ready for/like/need. We as parents need to learn their signs and cues and go with them. We get so caught up in what society thinks we need to do that we forget to follow the lead of out precious little ones.
As long as your daughter is thriving, growing and getting enough nutrition elsewhere I wouldn't worry about the solids. Remember, baby's stomach is about the size of her fist.
Hope this helps,
Melissa