Emulator

1. games

xenoblade,ssbb,zelda windwaker, any gc and wii game i have on my pc.

2. what i see

interface is working fine, but as soon as i start a game it crashes while loading it.
error: "Dolphin.exe has stopped working"

3. revision

i didnt have any problems with any version of dolphin a month or two ago when i last played some games (i had 3.0 revisions for each game with optimized settings). now the same revisions stopped working.
i tested where it stopped working and it has to be somewhere between revisions r6366 and r6372 since all tested before 66 do still work and after 72 dont work.

4. reproduce

everytime i want to start a game from the interface.

5. os, driver, ...

i tried (nearly) every x64 build up to 3.5-109 (which i also compiled by mysef).
my system is windows 7 64bit
graphics card is nvidia geforce gtx 560 ti

6. additional

i updated c++ 2010 runtime, gcard drivers and directx runtime
but the error still exists.
other programs and games are also still working fine.
maybe some incompatibility of dolphin with windows updates?

i also tested the new 3.5 x86 revision and it crashes at the same point telling me:
c++ runtime library runtime error
requested to terminate in an unusual way.

please tell me where to look for usable error logs.