I am still having the same problem.  It takes 5 to 15 seconds for the thread list to load.  When I click on a thread, it loads super quick!  When I hit the back button to get to the thread list again, it takes 5 to 15 seconds to reload.

So, I decided to download FireFox (version 3.6.13) this morning.  NAT works SUPER fast with it.  The thread list loads in less than a second.  I can read threads and then hit the back button and everything works great and FAST!!!!

Therefore, it must be a problem with the new script and IE 8.  Something is not compatable.

I have used FireFox in the past, but have found that many sites do not work well with it.  I always end up going back to IE.  Maybe times have changed (I've had internet service since 1996).  I will try FF for a few days and see if it works better now.