pop the switches out and see if they have loose connections, check the fuses again, and by check the fuses I mean check all the fuses... I had a similar problem with my rear break lights, they just wouldn't work and the fuses were fine, after changing the cigarette lighter use it all started working again... so just check all the other fuses to be sure.
1992 325i / Briliant rot - SOLD @ 301,000km
1998 318is / Arktic silber - SOLD @ 207,000km
2007 335i / Jet Black - CURRENT @ 28,000 km