Logo pulses and never opens Roon

Roon successfully opened on my iMac about 5 months ago and then refused to open ever since, despite numerous delete and re-downloads from Roon site. All current versions of OS at the time of download. Currently 10.11.4 El Capitan.

I’ve never experienced Roon since that initial experience and need help!

BTW, just discovered when clicking on About Roon, the program crashes every time!

Hey @Smittymail-- give this a read and let me know if it helps. If not, we’ll take another look.

Sorry for the trouble!

I did the Terminal suggestion and checked the Arial fonts (OK) and no change. Still no Roon for 5-6 months!!!

Care to arrange a screen assist?