Emulator

What steps will reproduce the problem?
1.When i'm playing Dead Space Extraction, after 15 minutes.
2.
3.

What is the expected output? What do you see instead?

I see this message:
unknown pointer address prefix 40, continue?
Yes/No

What version of the product are you using? On what operating system?

It's Dolphin SVN revision 4789.
My computer:

• Inter Core 2 Duo E6850 3.00Ghz
• 2 Go of Ram
• Geforce 9600
• Vista

Please provide any additional information below.

Sensor bar home made.

Thanks.