error on main_forum.php on line 28

[miic8310]

hi ive tried to set a simple forum up but i get this error

PHP Warning: mysql_fetch_array(): supplied argument is not a valid MySQL result resource in /home/database/public_html/main_forum.php on line 28

line 28 is...

while($rows=mysql_fetch_array($result)){ // Start looping table row

i cant get my head round it. can anyone help please?

thanks

[atef]

check mysql connection and the database taples which the loop using

[miic8310]

sql connection is ok.

ive done everything it said here Creating a simple PHP forum tutorial