Hello psander,
Here are a couple of suggestions on how to prevent your program�s extraneous attempts to access your floppy drive when you perform actions that should not access it.
Have you tried removing the reference to the floppy drive and recompiled and run your code? If so, does that remove the malfunction?
Do you have any anti-virus (AV) software running on your machine? If so, try deactivating the AV software and running your code again. Sometimes AV software can cause malfunctions in file input/output.
After accessing the floppy drive, did you close down the file read process? If it were still open, then your code may behave as though it were still reading data.
Let me know if you have any further questions about this issue.
Scott Romine
National Instruments
Scott Romine
Course Development Engineer
National Instruments