hi... why closes internet explorer ?

Hi everyone … Why when I will respond to a video on youtube closes Internet Explorer?
thanks …

It maybe a flash object error. I get that sometimes, too.

Hi Avast08

It’s not concern virus and worm affecting your PC it myght be your Setting on Your Internet connection try using FireFox

Here link :

http://www.mozilla.com/products/download.html?product=firefox-3.0.1&os=win&lang=en-US

avast08, is there anything into the avast logs that suggest an infection?
If you open in another browser, will it work?