Poor diagram image quality in Web (HTML) Reports.

(This post is a question. It's created here with the purpose of being able to link to it from certain web discussions. But, of course, if you happen to know the answer, you are very welcome to present the answer here)

Poor diagram image quality in Web (HTML) Reports.

My HTML reports gives me blurred diagrams

I have included an example of how my Web report diagrams look like.

I have tried many different combinations of settings (Image Format in html report window; Scale Saved Bitmaps to %; Image Memory Limit MB; Renderer; GDI Plus Meta-files; Scale view by %; Anti-aliased text; Compress text to fit within Element; Clipboard image format; ...)

But I have not found the cause of the poor image quality.

So please anyone - help :-)  What are the important settings and their values for geting proper image quality og diagram images in Web reports

(I did see http://sparxsystems.com/forums/smf/index.php/topic,25943.0.html - but that did not help me.)