@unknownuser said:
If you are working on something really large (say 1 mile long) SketchUp has problems displaying the geometry. It's called 'Clipping'. It's very common and nothing to worry about.
Where will i send the invoice for my services?
you can send it right here 
Anyway thanks again. Hope i will repay it someday. 
@unknownuser said:
Do you mean when you orbit it vanishes? Zoom to Extenets (Shift+z) and see if it helps. How large is your drawing?
Thank you very much. It's worked. It really has. Thanks you have saved me. Will you do me one last favor? Can you explain me why it happened? Again thank you.
@unknownuser said:
If you have autosave on it should have saved a backup (.skb) in your default save location.
Windows > Preferences > Files
I have found an autosave file but that file has little contents of my actual drawing (i mean the backup file is in earlier stage). And now whatever i draw in SU it disappears. Every time i move my mouse each portion of my design disappears. Why is it happening?
I was working on my drawing in SU pro 8, and suddenly the drawing just disappeared. I don't know what just happened. I could only see a blank new page there. I thought if i saved that page and reopen it i might find my drawing but it was useless. I only can see a blank new page, my drawing is not in there. What should i do now? Please help me. I need that drawing for my project and i have no time to do it again. Thanks in advance.
Thank you very much. It helped. 
I need A2 paper for my design. (I am using Google Sketchup Pro 8.0.3117) But in Layout 3 i couldn't find A2 paper, i could find A1 or A4 papers but no A2 paper. Please tell me how to add A2 paper in "My Templates"...Do i need to install any plug-ins?...Please help me in it ASAP.
Thank to Krisidious and Pyroluna to help me. Thanks for the youtube link...it really helped me.
can u see a circle on that cylinder? i can't "push" it using "Push/Pull" tool..whenever i try to do so it says "can't use it in here"...what should i do now?
u see my su isn't allowing me to draw a window there...i wonder why
No, not there... but in here (i am pointing the surface by an arrow)
