Calling the YaST module `inst_proposal has failed.

Hi!
Well. SLES 11 SP2, trying to install/conf OES11 SP1, but ... during OES configuration I get error "Calling the YaST module `inst_proposal has failed.", just after common proxy user settings and "Initialize MICASA" on background. During install everything ... seems to ... did go ok. Now ... "worth reporting bug", probably I missed something.
Any hints?
More thanks, Alar.
...
2013-01-30 18:44:19 <1> serv(28742) [YCP] installation/misc.ycp:1309 Calling `inst_proposal ($["enable_back":true, "enable_next":true, "proposal":"oes_product"]) returned nil
2013-01-30 18:44:19 <1> serv(28742) [YCP] installation/misc.ycp:1330 Not running hooks at the end of the installation
2013-01-30 18:44:19 <1> serv(28742) [ui] YPushButton.cc(setFunctionKey):204 Guessing button role YCancelButton for YPushButton "Quit" at 0x44dbee8 from function key F9
2013-01-30 18:44:19 <1> serv(28742) [ui] YPushButton.cc(setFunctionKey):204 Guessing button role YOKButton for YPushButton "Next" at 0x44dc3b8 from function key F10