I can confirm the first bug. Haven't tried to reproduce the second one yet. I used Rainmeter 0.14 for testing ( http://www.softpedia.com/progDownload/Rainmeter-Download-20289.html ) on wine-1.1.20 on compiz/xfwm4/metacity on Ubuntu 9.04, amd64 [2 cores] Didn't get any really useful error messages either. Code: $ wine "C:\Program Files\Rainmeter\Rainmeter.exe" fixme:win:EnumDisplayDevicesW ((null),0,0x32f544,0x00000000), stub! fixme:ntdll:NtQuerySystemInformation info_class SYSTEM_PERFORMANCE_INFORMATION fixme:dciman:DCICreatePrimary 0x328 0x75129c It seems like the skin is shown correct first, but then the black corners appear. Furthermore this bug only occures when the wine-version for Rainmeter.exe is set to a Windows 2000 or newer, with ME and below it seems to be displayed fine. Furthermore I noticed that the cpu load is (dependent on the pretended windows OS type) either persistent 0% (when OS is some NT -> fixme:ntdll:NtQuerySystemInformation info_class SYSTEM_PERFORMANCE_INFORMATION ) or something like 1078919324% (no fixme: message for that) and permanently increasing. "fixme:win:EnumDisplayDevicesW ((null),0,0x32f544,0x00000000), stub!" doesn't seem to show up on some win-versions btw. Well, got other things to do now, but I hope I could give you some useful info or at least didn't waste your time too much. Jay ps: oh and btw... the application locked up when testing different version settings while winecfg was running, didn't happen in virtual desktop mode though.