Fix For Windows Vista Desktop Not Refreshing Or Updating Correctly
I have noticed every now and then, Vista's desktop does not refresh or update itself correctly after adding a folder shortcut or downloading a file to the desktop. The screen would go blank, and eventually return or the downloaded file would never appear on the desktop unless I forced a refreshed by right clicking on the desktop and select Refresh.
It seems that the mechanism for refreshing the desktop breaks or stops completely for no reason.
Finally, I came across a hotfix, published on Microsoft support web site, that corrects this problem. Microsoft states the problem occurs when "…a Windows Vista-based computer has been running for an extended period of time".

