Computer question for the experts

[Nemo14]

I've had this problem before and I think someone on here had given me good advice, but I'm old and forgetful so I'll ask again.
The issue is when I type or read any print on this forum, the letter w (upper or lower case) appears washed out, similar to how letters on an old typewriter would look when the ribbon needs to be changed. I'm running Firefox, and it does not do this if I switch to IE. Here's a screen cap of what I see:

Any idea what's going on and what to do about it?

 

[Nemo14]

One more observation about this: the problem only happens in the default font (Trebuchet?) and if I switch to bold or switch font size, it goes away.

 

[Jahona]

Firefox at times can have issues rendering fonts. Trebuchet should be a system font and not have to be loaded from the website. Here are a suggestion on attempting to fix this issue. It's not a garuntee as there could be several factors causing the font to render wrong.

1. Update your graphics drivers. (Choose for your system)
   http://support.amd.com/en-us/download
   http://www.nvidia.com/Download/index.aspx
   https://downloadcenter.intel.com
2. Click the Windows logo orb on the taskbar to bring up the Start Menu.
3. In the search box, type the following then press Enter: Adjust ClearType Text
4. In the ClearType Text Tuner window, make sure "Turn on ClearType" is checked, then click the Next button and follow the steps until completion.
5. In Firefox, under Options → Advanced → General, make sure "Use hardware acceleration when available" is checked, then restart Firefox.
6. If the problems persist, check if you have the same issue in a brand new profile.
   https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles
7. If everything's okay in a brand new profile, return to your regular profile and reset Firefox.https://support.mozilla.org/en-US/kb/reset-firefox-easily-fix-most-problems

 

[Nemo14]

Thank you!