my fonts broke

I used KDE Control Centre's Font Installer to add the MS Tahoma font. Sadly, it crashed and restarted KDE - thereafter one particular font caused an error whenever I tried to use the installer, so I removed it. Everything is back to normal now, including the new Tahoma font, except when using a Konsole. Previously I had it set to use a "Custom" setting, but that's now displaying characters d o u b l e s p a c e d which isn't very helpful. I'm pretty sure the font I deleted was not the one I was using. If I try to change the Konsole font I get a choice of 3 rough looking fonts, none of which are any use. Can somebody tell me how to convince the Konsole to let me choose a proper font?? Please??! Cheers! sjb