Emulator

What steps will reproduce the problem?

1. Start either Super Mario Galaxy or The Legend of Zelda: Four Swords
   Adventures with "Copy EFB to GL Texture (Hack)"
2. That's it, you should notice a slight fps drop at the intro on Super
   Mario Galaxy or Four Swords Adventures and further on what I've seen.
   3.

What is the expected output? What do you see instead?
I should be running the game at a normal speed as I did before. I do notice
a massive slowdown, sometimes I don't, requires a restart and if you're
lucky, the game will be running at the speed you would get. I use this
option since it's faster than "Copy EFB to System RAM (Real)".

What version of the product are you using? On what operating system?
I'm on Windows 7 Release Candidate x86 using Dolphin SVN r3950.

Please provide any additional information below.
I think this only happens when Dual Core is enabled. Single Core might be
fine. My system is pretty decent and it's running the games either way pretty.

Does this happen for someone else? If not, then I guess it's my
configuration, but seriously, the games were running fine before. Please,
look at this, hopefully this is reproducible.