since i am the fist post to mention this there is a new SLX mobile, this is a website that is compatable with the latest phones(read iphone and android). als there is a bug!!

the opportunity details page errors out when the resellerID is an empty string. It does however work when the field is null or an actual ID. 

Check the ReadMe.txt file that comes with the install files and you'll see that this is mentioned - along with a fix.

John:

  The Web Client also behaves in a Similar way.

  Basically, if the ID is null, the system does not attempt to instantiate any Objects, so you get no errors.

  If the ID fields are Blank, the System attempts to instantiate an Object with a Blank ID.

  This is one of the reason why whenever I upgrade anyone to version 7.+ Web Client I typically update ID fields on tables that are used the most to have no blanks but Nulls.

UPDATE OPPORTUNITY
SET RESELLERID = NULL WHERE LTRIM(RESELLERID) = ''