Thanks for letting me know @DanNEBTD,
I am wondering if that Matrox card does not support OpenGL 3.0 and this is why you could be seeing those issue. Please take a look at the following threads: (Graphics card impact on Roon? Multi core CPUs?) & (Windows Server 2012 R2 [Solved]). You might want to try installing RoonServer instead of regular Roon and use a Roon Remote to control the PC. Please let me know if that helps.
Thanks,
Noris