well finally hacked the canon eos 300d , for mirror lock up!! at last, been thinking to do this for months, i used the unduchable mod, i downloaded the canon software for update 1.11 and replaced the fir file1.11 in the down loaded folder with the unduchable one , just dont mix them up has there the same number 1,11!!, now then did all that but could not understand why it was not updating? you have to open the card reader cover then shut it to start the down load to the camera!! opps! did i forget to read that bit!! any way it asked me to press set button on camera and finished, went in to menu and custom functions were there!! mirror lock and raw image mode. just need a clear sky now, did set up last night but usual clouds rolled in at 10.30.