WA exception

[jacobsp]

I have a user running Windows Vista, that, starting today, would receive the following error when opening emails from the web interface. The email would still open, but it was annoying to have to click OK to get rid of the message each time.

ASSERT: *** Search: _installLocation: engine has no file!
Stack Trace:
0:ENSURE_WARN(false,_installLocation: engine has no file!,2147500037)
1:()
2:()
3:()
4:epsGetAttr([object Object],hidden)
5:()
6:()
7:currentEngine()
8:get_currentEngine()
9:updateDisplay()
10:init()
11:([object XULElement],0)

What would be causing this? and what can I do to fix it?

thanks,

Pat