>I have compiled an application in fox 2.6 comprising of a small runtime EXE and a series of FXP files that are called from the EXE.
>
>I'm finding that when I use the 'DO....IN' command fox reports a 'Cannot read from Drive D: ' error only on PC's that do not have a (readable) D: drive. If D: is assigned to a CD-ROM drive then putting any CD in there cures this.
>
>Anyone help?

Stuart,

Some of your code (or possibly all of it) has been compiled on the D Drive. At run time, Fox searches for a more up to date file to use, and bases that search on the place where it was compiled - which it stores. The safest way around this is to ALWAYS use the c drive for compiling.