Backdrop wont work!!!!!!!!!!!!!

[LawlessPPC]

for some reason when I put workbench to backdrop mode from pull down menu and snapshot (using window or all) when i reset and workbench loads it still in a window. Any suggestions or can you tell me where to locate the prefs file this is stored in. Then possibly I can edit that. Im on OS3.9 BB1

[LawlessPPC]

just to respond ended up copying an old wbconfig.prefs across sorted problem but still doesnt tell me why it wouldnt work