Emulator

I'm playing LEGO Star Wars: Complete Saga (PAL). The game itself runs
great, at 40-60fps, with no visible graphics glitches and only with an
audible music glitch (otherwise fine), with the following serious system
memory save-related issue:

What steps will reproduce the problem?

1. Launch the game, play for a while until the game needs to be saved (the
   easiest way to save the game right away is to walk right in the Cantina,
   start modifying custom characters, and then press "Save and Exit", then the
   game will be saved).
2. Quit Dolphin, restart it, start the game again. The game will report
   that the saved game file is corrupt and unusable, and will provide an
   option to delete the file.

What is the expected output? What do you see instead?
On my Wii console the game saves and loads just fine every time, it's never
become corrupt. On Dolphin the saved game gets corrupt every time.

What version of the product are you using? On what operating system?
3874, running on Windows Vista SP1

Please provide any additional information below.
System specs: Intel Core 2 Duo E8400 @ 3,00ghz, 4096MB RAM (~3.35GB visible
on Vista 32-bit), GeForce9600GT 512MB.