Kyocera SE47 / SE44 / V5 (Slider)

Got my slider few days ago and since I don't like belt clips I carry the phone in my pocket all the time. Today I have noticed when screen saver is on (digital clock) I can see some spots of "dust" on inside of the screen and I don't know how to take it out. It really bothers me. Is there any way to take the phone apart to clean inside of the screen or I'm just going to have to put up w/ it? Also I'm not sure if it's only my phone but sliding part is really easy to open. When phone is closed you just have to push it a bit and will opet where to completely lock it you have to push it harder. Is this normal or what? Any help is appreciated.

Thx