It loads the results fine for me, also on Chrome and Win7. Try Force-Refreshing(CTRL + F5) and seeing if that helps, that's cleared up some bugs for me before.. I do agree that it needs a option to de-select it though.
Thanks for pitching in tielknight. @bats, first of all: funny! Although you are making me a little nervous running these kinds of searches through my site, ha-ha. I think the behavior you are describing has to do with so.cool incorrectly handling situations when Amazon returns no results for a given search, which, in turn, is probably caused by the "Get it by tomorrow" filter not working correctly either. This gives me a couple of things to look at, so... Sit tight!
I made some changes, so when you have a moment, try doing a hard reload of the page (Ctrl-F5) and see if it works any better. One thing to note about the Delivery Day filter is that it will use delivery time estimates to the Los Angeles area -- that is where the server on which so.cool runs is located. Depending on where you are and what items Amazon has in stock in your local warehouse, these search results may be irrelevant to you, and they will definitely be irrelevant to anyone using so.cool from outside the US. For this reason, I am actually considering hiding this filter altogether in order to avoid confusion, but for now it seems to work (or at least it doesn't break the site anymore). Thanks again for reporting this.