Since migrating to a MacIntel running 10.5.5, I've been having trouble printing to my 3800 out of CS3 . (Previously using a PPC-based Mac, things had been going smoothly). Specifically, problems have arisen when changing media requires a change in the black ink (matte to photo black, or vice-versa); a secondary issue concerns inappropriate error messages regarding paper feed parameters that occur randomly, as far as I can tell. I've been using the 6.11 driver which has been available here from Epson France since late July or thereabouts. Regretably, I just re-initialized my printer setup in the 0S preference pane, which did nothing, and have lost my paper settings that I must now re-configure.