@Topic
Got home, turned on the screen, waited for 15min and boom, it's all blurry again. So adjusting the pots didn't do the trick. I'm giving this method another shot, just to be sure.
I've a p260 that does the same thing in reverse, if you turn it on it's so blurry as to be nearly unrecognizable but after ~3-15mins of being on it makes a loud snap and is in focus.