Do you have the text size on you machine set to something other than 100% within Windows? I'm wondering if this could cause this issue. You can control this in Windows 7 from the control panel Change DPI Settings in Windows 7 in case this is the OS you are on. Similar methods should be applicable in newer versions as well.
If you have it set to 100% and can't seem to figure out what is happening or you are on a Mac, please do contact our support team. I think we have seen stuff similar to this before but I'm not certain.
You can open a case here: Support Submit a Case | Tableau Software
Ah, that makes sense. It only happens when I use a docking station so the resolutions between my monitors are different (monitor is larger than laptop). So it's probably doing weird things to the scaling. Thanks!