gdiplus.dll

Whenever i start up my computor it gets on to the "welcome" screen and then a box pops saying "Could not find gdiplus.dll Please reinstall this program" or something along those lines. I turn my laptop off and on and sometimes it works! I'm so confused. What should i do? What is this file? Where do I reinstall it?

gdiplus is a windows library, check its still on your computer; it may have become unregistered. If you find the file, open a command prompt and type 'regsvr32 c:\path\to\file\gdiplus.dll' if it doesnt find it, search the microsoft website for gdiplus.