在 http://msdn.microsoft.com/en-us/library/z613zk0e(VS.80).aspx 上面终于找到解决方案了,不用被困扰,以致重启系统了,呵呵
This one will make you chuckle: to fix this error, make sure your IDE has focus and press.. wait for it.. Ctrl+Scroll Lock. I'll say that again.. Ctl+Scroll Lock.
Better believe it.
Credit goes to:
http://blogs.ugidotnet.org/franny/archive/2005/12/08/31303.aspx