Forums mIRC Help Double quotes aren't showing up

Hey folks!

I've used mIRC for uh...a really long time now...and recently it's developed a very peculiar issue.

When I try to use double quotes, they show up as a solid black box instead. mIRC is the only program where I have this issue. Restarting it doesn't solve the issue. I haven't tried re-installing, and would rather avoid that if possible.

I have no idea where to look to resolve this issue. Any ideas?