I've just been to the William Hill Poker site. At the top of the first page is a Big Yellow download button. When I pressed it, it went into download mode so fast I barely had time to stop it. You try... click here
The problem only pops up when downloading from certai npoker sites. some work MOST don't. This is example of a link i get sent too, im guessing this is download page, but for me it's just a blank white page.