I just started having a problem in XP where I have to click on everything multiple times to get a response. I thought at first something was bogging down my system and it was just slow to react to my clicks, but that doesn't appear to be the case. Almost always (but not 100% of the time), the first time I click on something, the system doesn't notice it, no matter how long I wait. Even just clicking in a different part of this text box as I type my post requires multiple clicks to get the cursor to move. Links, closing a window, launching something from the quick launch bar - pretty much everything now requires two or more clicks, sometimes even four or five. This just started happening yesterday on a Dell XPS 400 that I've had for about a year. I didn't install any new software or do anything I can think of that would have caused this. I tried restoring to a restore point from a few days ago, but that hasn't helped. I'm having a difficult time searching for help on this problem so I thought I'd check here to see if anyone else has run into this. Any suggestions?