>When running remote terminals my VFP8 app experiences 'pauses' on a regular basis using a 512k/128k ADSL connection. The ISP claims there is no slowdown in the connection speed. Are there any tweaks anyone can think of to improve the situation ? I already know about screen refresh etc.

It's not the connection to your provider that is important. It's the connection from the remote PC to your provider. Does it use the same provider ?
and BTW, which kind of terminal server you are using ? W2k, W2k3, WinXP, Citrix ?