Anyone else with an HR24 having issues with slowness? Both of my receivers are frequently slow to change channels, pull up the guide, switch between the double play channels, and there are issues with the stopping and starting of recorded programs, and even with the TV apps. Since this is happening with both of my HR24 units, I am wondering if anyone else is experiencing similar problems, and if anyone has any ideas what might be causing them and what might be a solution. I have already attempted to re-boot both receivers several times but with no success. I am really trying to avoid calling D* because they probably will be clueless, so I am hoping someone has an idea. Thanks.