Smplayer failing to start

Hello everyone, on my system smplayer doesn't start from TDE. In ~/.xsession-errors is this error log: TQPaintDevice: Must construct a TQApplication before a TQPaintDevice [WARNING] Qt4 >= Qt 4.8.0 detected; you are likely affected by these Qt4 bugs: [WARNING] https://bugreports.qt-project.org/browse/QTBUG-25896 [WARNING] https://bugreports.qt-project.org/browse/QTBUG-26013 [WARNING] There is no known workaround for this problem; your Qt4 application will display with numerous graphical glitches. Das ist SMPlayer Version 17.7.0 (revision 8599), ausgeführt auf Linux [WARNING] Qt4 >= Qt 4.8.0 detected; you are likely affected by these Qt4 bugs: [WARNING] https://bugreports.qt-project.org/browse/QTBUG-25896 [WARNING] https://bugreports.qt-project.org/browse/QTBUG-26013 [WARNING] There is no known workaround for this problem; your Qt4 application will display with numerous graphical glitches. when I start smplayer in konsole I get this error message: [WARNING] Qt4 >= Qt 4.8.0 detected; you are likely affected by these Qt4 bugs: [WARNING] https://bugreports.qt-project.org/browse/QTBUG-25896 [WARNING] https://bugreports.qt-project.org/browse/QTBUG-26013 [WARNING] There is no known workaround for this problem; your Qt4 application will display with numerous graphical glitches. This is SMPlayer v. 17.7.0 (revision 8599) running on Linux [WARNING] Qt4 >= Qt 4.8.0 detected; you are likely affected by these Qt4 bugs: [WARNING] https://bugreports.qt-project.org/browse/QTBUG-25896 [WARNING] https://bugreports.qt-project.org/browse/QTBUG-26013 [WARNING] There is no known workaround for this problem; your Qt4 application will display with numerous graphical glitches. TQPaintDevice: Must construct a TQApplication before a TQPaintDevice These two differ only in having a different order of some of the lines (and the language, because my konsole is configured to have locale LANG=C). The warnings don't seem to be a problem as I've seen them a lot of times before without noticing any glitches. The system is Debian wheezy with TDE 14.04. Smplayer comes from an external repository from the MEPIS Community: $ apt-cache policy smplayer smplayer: Installed: 17.7.0-0mcr12+1 Candidate: 17.7.0-0mcr12+1 Version table: *** 17.7.0-0mcr12+1 0 400 http://mxrepo.com/mepiscr/repo/ mepis12cr/main amd64 Packages 100 /var/lib/dpkg/status 14.9.0~ds0-1 0 90 http://ftp.tu-chemnitz.de/pub/linux/debian/debian/ jessie/main amd64 Packages 0.8.0-1+deb7u1 0 500 http://ftp.tu-chemnitz.de/pub/linux/debian/debian/ wheezy/main amd64 Packages Mepis 12 is supposed to be compatible with wheezy, though. The TQPaintDevice error is not thrown, when smplayer/14.9.0~ds0-1 is installed, which is from jessie. Any ideas, what the TQPaintDevice error means and what I could do to fix that? Regards, Stefan