rdesktop in SuSE 8.2

rdesktop gives an error that I don't know what to make of. rdesktop 192.168.1.59 ERROR: Less than 8 bpp not currently supported. This used to work just fine with SuSE 8.1 on the same computer, accessing the same server, with the same command. Documentation for rdesktop is scarce. Anybody has an ideea?