We have a labview program which collects data from 1 channel of an ADC11. It uses ADC11_single.vi in a timed loop. It should read 50 times per second (uses the wait on ms multiple for the loop delay, with an input of 20ms). This program has worked well for months, however, we just upgraded from an old Win95 PI machine (200MHz?) running LabView 6i to a Win98 500MHz PIII running LabView 6.1. The program now runs like a snail, taking only 2 or 3 samples per second, and this delay is definately coming from ADC11_single.vi taking longer to execute.
What could cause this? I have checked the usual subjects - processes running in the background, and there is nothing obvious that should cause such a slowdown.
Any ideas, anyone?