Kali Brutalka

well i've bumped into another problem - everything seems OK but when i start to paint my model this weird lines show up...any clue what this might be and how to correct it?

i have the exact same problem. i've tried hitting Enter after positioning the cylinder and that keeps it in place when the sphere appears but after when i hit ctrl+enter nothing happens so i guess i must be missing someething??? also my sphere and cylinder are green color - not like in the tutorial where they're whitish... does that matter in any way?