Uninstalling any products core files gives an error?

[Simon Lloyd]

Hi all, I have a really strange problem, whatever product I uninstall (doesn't matter which) and then delete the core files that came with it I get this error

Warning: require([path]/xxx/xxxx/hooks/init_startup.php) [function.require]: failed to open stream: No such file or directory in [path]/includes/init.php(304) : eval()'d code on line 203

Fatal error: require() [function.require]: Failed opening required '/home/thecodec/public_html/forumz/xxx/xxxx/hooks/init_startup.php' (include_path='.:/usr/lib/php:/usr/local/lib/php') in /home/thecodec/public_html/forumz/includes/init.php(304) : eval()'d code on line 203

Its the same for every product, if I disable hooks in config.php (doesn't work if I disable hooks in admincp) then I don't get the error but then no products work.

Any ideas how to refresh the datastore as I believe it's that, if I reinstall any previous product the settings I set (including secret keys) are automatically put in place??

It's driving me nuts!