Canceling a skyrim mod download

Hey guys,

So, when i start Skyrim through , i like to close when i run to free up as many resources as possible. Yesterday, i tried downloading a Vivid Landscapes mod that i already had the file for and when i pressed "dont download", it showed up in my downloads list anyways with an empty bar. I then went and right-clicked it, and pressed either Cancel or Remove (cant remember). When i did that, the menu changed to like as if i was right-clicking an empty spot, while i was actually right-clicking this problem download. There was no change in the appearance of the bar or anything, so i quit (told me it had incomplete download, closed it anyways since i thought a simple restart would suffice) and now the file is no longer in my downloads list, yet is still telling me i have "incomplete downloads" and keeps giving me the message every time it quits, which is annoying as Skyrim is kind of buggy on window switching in fullscreen.

Thanks a for any help :D