Yes Minxy - I think there's a bit of truth in that - and also you can't make a yarn into something it doesn't want to be, as has been said.
Alison h wrote:
I have some nasty pound-shop acrylics that I bought before I knew any better; they are sulking in my stash, and don't seem to want to be anything; whatever I start with them doesn't look right, and gets abandoned.

I think I have some with a similar mood to yours Alison - it's a colour that my mother absolutely loves and I've tried 3 shawl type patterns, and each time I've gone wrong and it's just getting tedious to even look at the yarn anymore

it's a shame because my mother really does like it, and she shudders at the price of more expensive yarns.
There's no love between I and this yarn, and I think it knows it and is rebelling!
I think I shall have to look myself for a similar colour in a nicer yarn and then just surprise her later, and just not tell her the price!?