Check out MS KB article
http://support.microsoft.com/default.aspx?scid=KB;EN-US;Q299603&

See PRB: "Error reading file" Error Message on Windows 2000 Terminal Services Microsoft Knowledge Base #Q299603 and Re: Visual FoxPro errors on Terminal Server/Citrix Thread #663297.

Hope these help.
- jim

>Hi All!
>
>I am looking for any information on using FPD 2.6 under MS Terminal Server.
>
>My current concerns are: general performance and "file access denied" messages.
>
>Thanks!