I tried the 2.1 client (full installer) just today. I ended up getting a blank blue bar after a few things load, and nothing else happens. And apparently I can't run 1.0 while 2.1 is installed (it leads to 2.1's files. I'm guessing it has to do with certain registry keys.). So, I uninstalled 2.1 and am in the process of installing 1.0 again. Luckily, it was still available here:
Having Trouble? Look Here First!
But for your case, maybe try using the 2.1 full installer if the patch didn't work.
Just finished installing 1.0 and apparently it wasn't the same one I had before. So I'm stuck out of EA as well...