I fixed the first problem..!

I fixed the "zoom error" problem..but to be honest I'm not exactly sure how..i found some "jewelers tools" and following instructions found on this sight,ever so carefully,started unscrewing screws.First I removed the lens shroud,made sure it was clean...nothing..still had zoom error so then proceeded to remove the back of the camera..looked around and kinda "shook" it out.There was one little screw left that was preventing me from getting to the gear box but it wouldnt budge and i was afraid of stripping the screw so I said heck with it and reassembled it..figured what the heck and turned it on OMG! imagine my thrill when the lens zoomed in and out just like it is supposed to! But then i inserted memory card,turned it on and got the "zoom error"message again followed by "no card". Now what?