Error message: Warning: xxxxx(../inc/inc_config.php) [function.xxxxx]: failed to open stream: No such file or directory in...
What to do: Control if the /inc/inc_config.php file exist. If not, probably you have no permission to write into the /inc/ folder, follow the next faq:

Error message: Warning: fopen(../inc/inc_config.php) [function.fopen]: failed to open stream: Permission denied...
What to do:
- Linux host: chmod 766 root/inc/ folder
- Windows host: place the site root in the public folder


Error message: Error performing query CREATE TABLE `memht_xxxxx`.....
What to do:
- Check MySQL database rights
- The database may already contain a table named 'memht_xxxxx'