This happens to me all the time. V4.06 Build 358. And it happened with the earlier version. Nice editor, I really like it. A couple of times it did this font change thing and garbaged up my file by repeating about a 20 line section near the end. I'm using an old Dell Laptop, Windows XP home addition, latest updates (I think). It happens when I click on the editor window. Suddenly the font chages, usually to something too small. I'm logging on to our UNIX system IRIX64 6.5.
I wan't able to reproduce that. What version of WinSCP and Windows are you using? Does the font size changes in the already opened editor windows?
When I'm working on a website, I'll often use Firefox 1.5 to resize the text to see how "elastic" my website is durring development by holding down the control button on the keyboard and moving my mouse wheel up or down. This can also be done via control button and the '+' or '-' keys...
After I do this, I'll go back to WinSCP to continue editing my CSS or XHTML file via the "Edit" window. The strange thing is that when I go back to the edit window of WinSCP, the text inside of THAT changes size too!
What's up with this? Am I going to have to find a new editor? Any help is appreciated.