When uploading of a PV600 standard and the upload is completed...msg pops up FAILED TO OPEN DOCUMENT. My PB32 is V3.81.....PV is 2711-T6C20L1 Ser.B Frn 4.46....We have at least 5 other touchscreens (same model) that I have done uploads with no problem but comm. was DF1 and this one is ethernet. Any suggestions would be greatly appreciated.