I have downloaded live messenger 8.1 but it wont work on my puter which is using the vista operating system. Everytime i try to login a error message comes up saying that messenger has stopped working, and windows will close the program and advise if there is a solution. then a message comes up saying that the Data Execution Prevention Program has closed it and explains to run the program you have to change settings in the control panel. Trouble is when you try it says that this program wont let you change the settings. So has anyone else had the same problem and resolved it ?

Any help appreciated