Hi. I've been trying the forms again, and I've had more success without it locking up. I've disabled the automatic preview and I think this has helped.
First one that pops up is relating to WAUEInsp.html (have attached a screen shot). This repeats 4 times.
Second one that pops is a validation rule error. I have not changed any code of the form, and the name is still is a required field, but I get an error relating to this now. On either clicking yes or no, my php page is completely ruined with all formatting disappearing, and it looks like a mess.
Pleeeease help! I appreciate your time.