Jquery UI Datepicker not displaying

Question

UPDATE
I have reverted back to Jquery 1.3.2 and everything is working, not sure what the problem is/was as I have not changed anything else apart of t

Answer 1

I changed the line

.ui-helper-hidden-accessible { position: absolute !important; clip: rect(1px 1px 1px 1px); clip: rect(1px,1px,1px,1px); }

to

.ui-helper-hidden-accessible { position: absolute !important; }

and everything works now. Otherwise try upping the z-index as Soldierflup suggested.