http://bugs.winehq.org/show_bug.cgi?id=35225
--- Comment #5 from Anastasius Focht focht@gmx.net --- Hello Andrey,
--- quote --- Yes, 1024x768 and higher makes much better, but still 1px size line is still present anyway. And why that present just for some installers and not for all in a row? --- quote ---
well, I don't know - most likely some installers had background images optimized for 1280x800 minimum resolution. The vendor probably didn't anticipate someone would run it with such low resolution. Who runs Windows with a native desktop resolution of 800x600 when trying to play high-res games? That is pretty pointless.
Please verify that this artifacting issue is _not_ present on Windows when the installer is run with a low Desktop resolution (provide full screen screenshots).
Regards