Thanks. I've had her for about 5 years now. She still has some quirks, such as her ears and if you're going to catch her you have to chase her..literally. She has gotten sooo much better though, it used to take 15 minutes to chase her down and catch her, now she may run around the pasture once and then stop along the fence or in the barn and wait. She's a doll to handle and ride though.
I have a buckskin mare who has a lot of "frost" on her mane as well, but I'm fairly sure she has paint genetics, as she threw a paint colt the year after I got her :) I keep her mane in pasture braids and only unbraid them about once every couple weeks, and it really helps keep her mane long and neat. I'll add a picture for fun :)
My dun has lots of "frosting" in his mane, forelock, and even a little "cap" on his tail... I've also seen quite a few buckskins with the trait too, but I don't know enough to tell you which gene is causing it. A couple pics