We use a program called FocalPoint for our timesheets and expenses that we access through IE8. It is only compatible with IE8 so unfortunately we are not able to upgrade to IE9 yet.
Recently one user has been getting a script error whenever he tries to print from the program. It is supposed to open up in a pop-up window displaying a PDF view of the print-out, but whenever you click 'print' you get the following internet explorer error:
An error has occurred in the script on this page.
Error: No such interface supported
Do you want to continue running scripts on this page? Yes/No
Originally when this problem occurred I thought it was a pop-up blocker issue, but after disabling pop-up blocker and opening IE in no add-ons mode the same error occurred. I re-installed IE8 and the problem persisted. In the end I did a system restore and this actually solved the problem for a couple of days, but now the problem is back despite the user not making any changes.