When I ALT-TAB between two excel files at a fast pace (such as when copying
and pasting data from one spreadsheet to the other) the screens seem to
slightly twitch or randomly blink in some places, or sometimes certain chunks
of cells become white (best way I can describe it), and then sooner or later
ALT-TAB stops working in Excel and I am unable to switch between Excel files
altogether (meaning ALT-TAB doesn't work in Excel or clicking on the Excel
file in the taskbar doesn't bring up the Excel file, similar to when Excel
freezes). Then I have to CTRL-ALT-DELETE and close out of Excel completely.
My "Windows in Taskbar" is checked under Tools/Options/View. This happened
on my previous Dell Latitude D620, so I just upgraded to a Dell Latitude D630
in hopes to fix this problem and it still is happening. This happens
regardless of file size (large or small). Please help! Any advice to fixing
this problem is appreciated. Thank you.