Going crazy with DD poor napping!!!!?

OK. We have a 10 month old DD who has never really been a great day time napper though she does sleep wonderfully at night 95% of the time. But she is driving me crazy recently because of her lack of day time sleep. She "takes" 2 naps a day supposedly, one morning one afternoon and bed time is around 6:30-7:30pm. She will usually sleep till 6-6:30am with no mid-night wake ups. I know I should be grateful that she sleeps so well at night and I am. The problem is that she will take really short naps if she takes one at all. And she just gets crankier and whiner the more she is awake. I just don't know what to do anymore. I have tried letting her cry it out, I've tried extended her awake time before her morning nap, I 've tried shortening her awake time before her naps. Please if anyone has any answers to this problem please fill me in.