I have a Dimension 4400 and run Windows XP. In the last couple of days there are times when I try to open a page nothing happens. When i try to close the page a message box pops up. It says-Microsoft internet Explorer, red circle with white X and reads" window is busy. closing window may cause problems." I haved clicked Ok and cancel but the window still wont close. i have had to restart my computer several times just to get rid of the page. i have tried system restore but no matter what day I pick it says "cannot be restored to that day" Any ideas on what is going on? I need some help here please! thanks