The cart works perfectly with all browsers on a PC as well as Chrome and  Skyfire on an iPad but it will not open at all using Safari on an iPad.

Error log shows the following:

2012-10-21 11:29:00 - database error:  AbanteCart core v.1.1.1 Error: You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near '' at line 1<br />Error No: 1064<br />INSERT INTO language_definitions (language_id,block,section,language_key,language_value,create_date) VALUES  in <b>/home/e25lapo/public_html/store/core/database/mysql.php</b> on line <b>86</b>

Any ideas? Thanks . . .

Many people object to revealing a telephone number when registering for an online account.  Unfortunately, it is a required field during the registration process.  How can I remove that requirement and leave it optional?

Many thanks.