>>There are problems with FPD 2.0 and the newer PCs. The hardware is just too fast for some things. A rewrite is in order.
>
>I believe that 2.5a is latest FP DOS version. Same problem? Any idea why the problem exists at all (i.e., how can there be a timing problem on a single-user, single-threaded non-preemptive operating system)?


Actually, 2.6b is the last DOS version. The problem comes with speed and timing. One problem has to do with creating temp file names with SYS() functions. It is possible to create two temp tables with the same name as the SYS() functions used to do this call the system clock.