I appreciate the steps you've done to get this working. I'm here to help make sure that your QuickBooks Online (QBO) font display will be back to normal.
I check if there's an ongoing issue about this but there isn't currently one. Since you already tried to use a different browser, let's other steps that can help us isolate this. Try logging into your QBO account using a private browser (Incognito) this time. There are times that the browser is full of frequently accessed page resources, thus causing some errors and/or unusual responses. Here's how:
On your keyboard, press Ctrl + Shift + N (Google Chrome).
Ctrl + Shift + P (Firefox or Internet Explorer).
Control + Option + P (Safari).
If it'll work using a private window, go back to your default browser and perform clear cache to remove temporary internet files on your computer. Before doing so, make sure to take note your saved passwords and URLs. Once done, here's a helpful article with the steps on how to perform clear cache: How do I clear my browser cache and temporary Internet files.
That's it! Give this a try and let me know how it goes by leaving a comment below. Please know that I'm only a post away if you have any follow-up questions. Take care and have a good one.
Re: Can the font of the QB display be changed from gray/thin to black/normal? I tried using a dif...
Thanks for your reply, Fritz. It did not help. Right now I am writing this in bold and it looks normal to me, but without bold it looks very thin. However, since there was only one other complaint about this issue in the QB community, it's probably something that I am doing wrong, as opposed to an issue with QB. I also tried changing the screen resolution and general settings, but that also did not help.
Thanks for getting back to us. I'm here to guide you to the right support so you can get the help you need.
I appreciate you for taking the time to follow all the instructions provided by my colleague FritzF just to resolve this issue. In this case, I encourage you to get in touch with our Care Support Team. They will be able to create a new investigation for this issue and once it has been open, you’ll be receiving an email notification about the updates and progress of the investigation.