Updated PC. Re-installed myibay, then updated.
Placed a bid on an item but programme did not place this bid, so I therefore lost the item.
When clicking on the "Update watch list" am advised that I do not have any items in my watch list, but guess what, I have twelve registered on eBay.
Any advice would be apprecited.
Thanks in advance.

Did you change your eBay password recently? If you did, you have to login with your updated password into the sniper to keep it in sync.

The sniper can't snipe and import your watching list if it does not have your current password.
http://www.myibidder.com/login/faq/2/#q6

Cleared the programme completely from my PC, re-installed, now every thing working fine (I hope)
Thanks for your assistance.