Fonts trouble

Hi, anyone know how to deal with this: I had trouble with the Xserver which crashed in KDE3. I restarted in safe mode, everything looked all right, so I restarted again in full-up mode. I then ran sax2 since one result of this crash was that my monitor settings went up the spout. Unfortunately, somewhere down the line my font configuration appears to have gotten messed up. Helvetica, which I like to use as the main display font, is now only available in odd sizes, like 11, 16 and 21, rather than in 9, 10, 12, etc. Is there any way I can fix this back to normal? :) Mark