First thing I would suggest is clearing your cache.
IE6 (Internet Explorer 6)
Open Internet Explorer (one window only) and click on Tools then Internet Options.
On the general tab click on Delete cookies , then OK.
Now click on Delete Files then OK and OK again. Now press "Ctrl" and F5 together.
Close and restart your browser.
IE7 (Internet Explorer 7)
Open Internet Explorer (one window only) and click on Tools then Internet Options. In the middle of the General Tab in the area relating to Temporary internet files and cookies click on Delete Files then OK. Then "delete cookies" and "delete files". Then click OK. Now press "Ctrl" and F5 together. Close and restart your browser.
Now click on Tools>Internet Options> On the Security tab set the level to Medium. Then on the Privacy tab set the Privacy level to Medium-High.
Now click on Tools>Pop Up blocker and ensure that the pop up blocker is turned off.
Delete any shortcuts to the website in "favourites" and "bookmarks"
The above should clear any corruption and force your computer to download new cookies from the site.
IE8 (Internet Explorer 8)
Open Internet Explorer (one window only) and click on Tools then Internet Options. In the middle of the General Tab in the area relating to Temporary internet files and cookies click on Delete Files then OK. Then "delete cookies" and "delete files". Then click OK. Now press "Ctrl" and F5 together. Close and restart your browser.
Now click on Tools>Internet Options> Under the Browsing History heading please select 'Delete'
Please ensure that the Cookies, Temporary Internet Folders and History boxes are checked.
Now click on Tools>Pop Up blocker and ensure that the pop up blocker is turned off.
Delete any shortcuts to the website in "favourites" and "bookmarks"
The above should clear any corruption and force your computer to download new cookies from the site.
For Safari
Press Ctrl, Alt and E at the same time and this will ask you whether you wish to empty the cache - select 'Empty'
Delete any shortcuts to the website in "favourites" and "bookmarks"
In Opera
Select the 'Tools' menu and Advanced
Select Cookies
You will then need to delete the cookies one at a time.
Delete any shortcuts to the website in "favourites" and "bookmarks"
In Chrome
Click on the spanner - top right corner
Select Clear Browsing Data from the drop down box
Ensure that Empty the Cache and Delete Cookies are checked
Select Everything from the drop down box
Click the 'Clear Browsing Data button
Delete any shortcuts to the website in "favourites" and "bookmarks"
In Firefox
Enter the following link in your browser: http://support.mozilla.com/en-US/kb/Clearing+Private+Data
Delete any shortcuts to the website in "favourites" and "bookmarks"
Once you have done this, I'd suggest checking your Internet speed with speedtest.net and ensure it's not dreadfully low.
Once you've done both of these we can look into it further, unfortunately at this time I'm not aware of a way of downloading the videos from the Player.
Cheers,
Ste