Just came to reinstall and cannot? Fatal Error!

Howdy, I've been installing and uninstalling the latest version a lot due to my alpha testing within my shopping cart, I have deleted and created new databases each time and zero'd the sectors that the files were in to ensure a clean install. Yet after I choose my site name, short description and upload area and go forward to the next step, I am now presented with this error: <br /> <b>Fatal error</b>: Call to undefined function captcha_generate_token() in <b>/home/clikyzqc/public_html/social/mod/captcha/views/default/input/captcha.php</b> on line <b>13</b><br />
Any ideas? Thanks in advance!

Two hours later and several databases and installations later, heck even redownloaded the software and tried a different terminal and switched out the ethernet cable, still having the same problem, at first I thought I might have been losing packets but I was not.