I have Microsoft Windows XP Professional Version 2002. An Intell Pentium processor with 448 MHz, 320 MB of Ram. The problem has been random but when I try to open programs on the internet (example, delmarlearning for school) I get an error message "Internet Explorer has encountered a problem and needs to close". At the bottom are two options, "Send error report" "Don't send". I did a defrag last night and that didn't help.......