And this is what my console mean, when I want to start Osu a second time. ^^
03.08.12 02:17:02,137 Wineskin[3008]: Starting up...
03.08.12 02:17:02,137 Wineskin[3008]: reading all configuration information...
03.08.12 02:17:02,146 Wineskin[3008]: Starting up WineskinX11
03.08.12 02:17:02,146 Wineskin[3008]: Using Engine WS8Wine1.4-rc5
03.08.12 02:17:02,294 Wineskin[3026]: Starting up...
03.08.12 02:17:02,295 Wineskin[3026]: reading all configuration information...
03.08.12 02:17:02,299 Wineskin[3026]: files ed in to open, will open with associated app
03.08.12 02:17:02,304 Wineskin[3026]: Starting up WineskinX11
03.08.12 02:17:02,305 Wineskin[3026]: Using Engine WS8Wine1.4-rc5
03.08.12 02:17:02,357 com.apple.launchd.per.501[155]: (0x7ffe4b5035a0.anonymous.WineskinX11[3022]) The following job tried to hijack the service "osu!.Wineskin.prefs" from this job: 0x7ffe4b6029a0.anonymous.WineskinX11
03.08.12 02:17:02,706 ReportCrash[3043]: Saved crash report for WineskinX11[3022] version test (Wineskin 2.5.4) to /s/thomasscheibmayr/Library/Logs/DiagnosticReports/WineskinX11_2012-08-03-021702_XXXXXXXXXXXXXXXX-iMac.crash
03.08.12 02:17:02,708 ReportCrash[3043]: Removing excessive log:
file://localhost/s/XXXXXXXXXXXXXXX/ ... iMac.crash
03.08.12 02:17:02,729 Wineskin[3008]: WineskinX11 running on PID 3022
03.08.12 02:17:02,729 Wineskin[3008]: Fixing folders in Drive C to current
03.08.12 02:17:02,865 Wineskin[3026]: WineskinX11 running on PID 3042
03.08.12 02:17:02,865 Wineskin[3026]: Fixing folders in Drive C to current
03.08.12 02:17:02,922 Wineskin[3008]: Starting specified executable in Wine
03.08.12 02:17:02,978 Wineskin[3008]: Wineserver running on PID 3084
03.08.12 02:17:02,982 Wineskin[3008]: Sleeping and monitoring from the background while app runs...
03.08.12 02:17:03,060 Wineskin[3026]: Starting specified executable in Wine
03.08.12 02:17:03,114 Wineskin[3026]: Wineserver running on PID 3120
03.08.12 02:17:03,118 Wineskin[3026]: Sleeping and monitoring from the background while app runs...
03.08.12 02:17:04,062 sandboxd[3141]: ([2676]) mdworker(2676) deny file-read-data /private/tmp (pre-ls-info fstype:hfs fsflag:480D000 flags:240000004C diag:0 uti:com.apple.application-file plugin:/Library/Spotlight/Application.mdimporter - find suspect file using: sudo mdutil -t 4343911)
03.08.12 02:17:04,000 kernel[0]: Sandbox: sandboxd(3141) deny mach-lookup com.apple.coresymbolicationd
03.08.12 02:17:04,318 Wineskin[3008]: Application finished, cleaning up and shut down...
03.08.12 02:17:04,399 Wineskin[3008]: Finished!
03.08.12 02:17:06,652 Wineskin[3026]: Application finished, cleaning up and shut down...
03.08.12 02:17:06,732 Wineskin[3026]: Finished!