Adobe Flash

Having a strange problem today...I was on IWON.com this morning and everything was working fine. I saw that there was a update for Microsoft XML so I downloaded and installed it. Later on I opened up the page again and all of the things that use adobe flash player are grey boxes. I went to the adobe web site and reinstalled the player and refreshed the IWON page and everything was working again. But the next time I opened IE it was the same thing again, grey boxes where flash player images and things should have been. Anyone know why and is anyone else having this problem?