Sorry for delay - work in the way!
Picking up on a few questions:
Single PC, Win XP SP2 (would like to add IPAQ to the network when it is 'sorted').
Original installation (and running now) 'Hard-wired' BT Basic Voyager 100. Trying WIFI with 3Com 3CRWDR 100A-72 11g firewall/router. I started with 128 bit WEP. Took that off following this thread and enabled PC on MAC address. SMALL speed improvement based on 1 test but still noticeably slower. I have never used WPA.
'Long-line' line classification by BT and max speed 'available' would be between 512 and 1M.
Stoopid question
- '54MBPS' is the theoretical data rate? If so, 512kb should be well within its 'capactity'?
For memetic - I appear to have the latest software (Version 2.06) - and yes, I was expecting no significant reduction in speed.