Barrie
If the grip is beginning to give problems and reglueing it doesn't
work, it may be best to replace it while parts are relatively easily
available.
Luton Cameras are authorised Olympus repair agents in the UK. They
sell genuine Olympus replacement grip kits for the E-1 including the
required double sided adhesive tape. See the link below for the eBay
listing. Or you can contact them direct.
http://cgi.ebay.co.uk/OLYMPUS-E-1-Front-Grip-Rubber-replacement-Kit-NEW_W0QQitemZ350067029551QQihZ022QQcategoryZ31388QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
LC also sell replacement monitor covers for the E-1 and the (easily
lost) flash hot-shoe covers.
I've bought stuff for the E-1 from LC before and they've delivered
very quickly.
Regards
Nigel M