这是我尝试启动 Steam 时的输出。它以消息“Keine Verbindung zum Steam-Netzwerk möglich...”结束（没有连接到 Steam-Network...）
到目前为止，删除 appcache 没有帮助。
running Steam on ubuntu 13.04 64-bit
STEAM_RUNTIME is enabled automatically
Installing breakpad exception handler for appid(steam)/version(1370553818_client)
Installing breakpad exception handler for appid(steam)/version(1370553818_client)
unlinked 0 orphaned pipes
Gtk-Message: Failed to load module "overlay-scrollbar"
Installing breakpad exception handler for appid(steam)/version(1370553818_client)
[1004/102851:WARNING:proxy_service.cc(646)] PAC support disabled because there is no > system implementation
Installing breakpad exception handler for appid(steam)/version(1370553818_client)
Installing breakpad exception handler for appid(steam)/version(1370553818_client)
Installing breakpad exception handler for appid(steam)/version(1370553818_client)
Installing breakpad …