[Wine] steam stop as soon as it's started

[Cr0k]

Hi there.
I just ran Steam on my desktop (Gentoo AMD64, wine-1.3.21 (but I also had the problem with previous versions of wine), and it stops with these messages : 

Code:
wine Steam.exe 
fixme:process:SetProcessShutdownParameters (00000100, 00000000): partial stub.
err:secur32:SECUR32_initSchannelSP TLS library not found, SSL connections will fail
err:ntlm:SECUR32_initNTLMSP ntlm_auth was not found or is outdated. Make sure that ntlm_auth >= 3.0.25 is in your path.
err:ntlm:SECUR32_initNTLMSP Usually, you can find it in the winbind package of your distribution.
fixme:toolhelp:CreateToolhelp32Snapshot Unimplemented: heap list snapshot
fixme:toolhelp:Heap32ListFirst : stub
fixme:mixer:ALSA_MixerInit No master control found on HDA NVidia, disabling mixer
err:ole:CoGetClassObject class {77f10cf0-3db5-4966-b520-b7c54fd35ed6} not registered
err:ole:CoGetClassObject no class object {77f10cf0-3db5-4966-b520-b7c54fd35ed6} could be created for context 0x1
Assert( Assertion Failed: bRet ):.\hardware_win32.cpp:583

fixme:dbghelp:elf_search_auxv can't find symbol in module
fixme:winhttp:WinHttpGetIEProxyConfigForCurrentUser returning no proxy used
fixme:win:RegisterDeviceNotificationA (hwnd=0x100c4, filter=0x32d588,flags=0x00000004) returns a fake device notification handle!
fixme:winhttp:WinHttpGetIEProxyConfigForCurrentUser returning no proxy used
fixme:win:EnumDisplayDevicesW ((null),0,0x32d02c,0x00000000), stub!
fixme:appbar:SHAppBarMessage unknown msg: 4
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETSTATE): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=3): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=1): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=0): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=2): stub
fixme:appbar:SHAppBarMessage unknown msg: 4
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETSTATE): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=3): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=1): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=0): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=2): stub
fixme:appbar:SHAppBarMessage unknown msg: 4
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETSTATE): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=3): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=1): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=0): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=2): stub
fixme:appbar:SHAppBarMessage unknown msg: 4
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETSTATE): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=3): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=1): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=0): stub
fixme:appbar:handle_appbarmessage SHAppBarMessage(ABM_GETAUTOHIDEBAR, hwnd=(nil), edge=2): stub
fixme:advapi:RegisterTraceGuidsW (0x3955320, 0x3fab738, {3dada31d-19ef-4dc1-b345-037927193422}, 1, 0x3f83b24, (null), (null), 0x3fab750,): stub
fixme:dbghelp:elf_search_auxv can't find symbol in module



Does anyone know what I can do to solve it?