FIXED!
I just rebooted my system and now everything is normal.
I didn't think rebooting would help because another font I thought I'd installed had gone missing, and I had this same problem a long time ago, but the other font may have been in use before I reinstalled XP some months ago, and that is why it dissapeared. As for what happened a long time ago, I don't remember how that was resolved.
But it works now, so yay.
I wonder why I had to reboot to get it to work though? That doesn't make sense.
I just rebooted my system and now everything is normal.
I didn't think rebooting would help because another font I thought I'd installed had gone missing, and I had this same problem a long time ago, but the other font may have been in use before I reinstalled XP some months ago, and that is why it dissapeared. As for what happened a long time ago, I don't remember how that was resolved.
But it works now, so yay.
I wonder why I had to reboot to get it to work though? That doesn't make sense.