unable to download from asset store

i started downloading ‘Standard Assets’ from asset store and it stopped in the middle due to some internet connection problems. Now when i am trying to download again it only shows ‘Please Wait…’ and, well, that’s about it. No progress, nothing.
At first I thought it might be a connection problem but then other assets are downloading perfectly. just not the ones which were stopped in the middle.
Is there any way to get around it? or is there a way to remove the partially downloaded assets from unity editor?

If they only partially downloaded they shouldnt be iun the editor. if they are then just click them and press delete(cmd click and press delete on mac). If you still cant get them to import then id say start a new project, import the standard assets in there, and then just drag them from one project to another.(if you did not change the location, your project root folder will be in My Documents and the assets will be in the assets folder. Also, im fairly certain that you can import the standard assets at the beginning of a new project before you press the create button