http://bugs.winehq.org/show_bug.cgi?id=18684
--- Comment #8 from Ken Sharp kennybobs@o2.co.uk 2009-05-29 12:34:28 --- That's just because I removed / and added it again, winecfg chooses f: and I can't see a way to change the drive letter. Same effect anyway.
Removing those fonts still causes the page fault.