Hello,
I have the same issue on rebug 4.81 (Patched no BD with MFWBuilder since my blu-ray is broken)
If i try to load a game with Webman , i have blackscreen.
If i try to load a game with Multiman it give me an error 8001003A.
I have cobra mode enabled in rebug toolbox, i have tried on CEX and DEX with the same result.
If i disable Cobra Mode and Webman in rebug toolbox, i can launch a game with multiman without error or black screen (Call of duty 4), but as soon as i enable Webman and Cobra Mode it stop working and i hit an error or a black screen.
i need Webman bcs it's the only app with a working fan control on 4.81 , exept IRISMAN but i have the same result , can't load game with Iris but i can with multiman , but as soon as i launch Iris to enable fan control , the game will gave me a black screen.
Sorry for my english