This problem occurs if Window’s font rendering is set to ‘Standard’ instead of ‘ClearType’. I’ve only had it reported a couple of times, so I think ‘ClearType’ is the default setting. You can change the font rendering in Windows without any side effects as far as I can tell (unfortunately, I’ve not been able to fix this in the Crumble software).
If you are able to right-click on the Desktop, select Properties -> Appearance -> Advanced, you can change the font smoothing to ‘ClearType’.
Hopefully, the above will work for you. Let me know if you have any problems or questions.
All the best,