I ran into a problem the second after installing Windows 7 a few months ago, but it only affected a few applications at the time, so I ignored it. Now an increasing number of applications behave the same way and it's annoying. The DPI settings seem to have an issue as can be seen below:
The same application should look like this:
The DPI is set to 100% (I tried changing it but it had no effect). I think perhaps the Regional / Language settings have something to do with it but I can't turn it off to English only.