I had a notebook(gateway), used window 7 will have a strange thing happen. I went to internet and search, but unfortunately wasn't able to find many resource about it.
If i click same application for example two notepad==> then go to desktop again, then i put my mouse cursor to notebook on taskbar. It will flash it or is unable to click the first notepad. Normal situation is if you move cursor to notepad on taskbar will let you select.
I went to internet and search about it, there was one video similar to my problem. The video show clear:
My orginally is window vista, then after upgrade to window 7 it become like that.