hey guys... i know this is not ubuntu problem. i searched around but not able to find decent answer.

i have Virtualbox that run in windows and i installed ubuntu. But i am not able to enable seamless mode. i had clicked on the 'Install Guest Addition'. when the drive mounted, i went to terminal and CD to the media directory and type

sh filenamelinuxx86.run


it install well, i restart Virtual box even restart my laptop, but still the seamless mode not enable. any idea?