http://www.ezdia.com/Screen_Popus_slowing_your_PC/Content.do?id=1053
Helen Hodgetts and Dylan Jones, professor of psychology at Cardiff
University, examined the cost of such interruptions in terms of the
time taken to complete a simple seven-step computer
task.
Go through the article and find out ways to survive with Pop Ups ...
http://www.ezdia.com/Screen_Popus_slowing_your_PC/Content.do?id=1053
Researchers suggest that e-mail alerts and similar pop-up messages
should be as small and discreet as possible and should not obscure the
original activity.