Felt like I needed a new header, and whipped up something in a hurry while Little Brother was sleeping. Uploaded it, and wtf? It was all fuzzy and pixelated. After exporting my header a load of times I decided to go back to my old header. Fuzzy too. Bugger blogger. Blogger bugger.
I was just about to throw my Mac out the window when I realised I hadn't googled my issues. I litterally wrote "can't upload header without being pixelated", and Google answered my prayers.
Thank you bloggy world! You all rock!
A very gratefull MissBuckle