Whenever i export my file , it gives me wierd lines around the images i inserted , how can i fix it?

Could you give us a more detailed description? To which file format are you exporting? How are you exporting exactly? Is it a single closed line around your image, or more than one line? What do you mean by images you 'inserted' -- did you import some non-vector images? If so, how did you import exactly? The more detail, the better; always a good idea when seeking help in a forum

Sounds like bug 475882.