I am using a canon 1ds mk3 tethered to lightroom5.7 on mac 10.10.5 using canon utility 188.8.131.52. Everything is good except the import dialog window comes up in lightroom. i can cancel it but this has never been a problem before. The same exact problem exists with my T5 and all the same software..
Could you please go to the following location and uncheck the Show import dialog when a memory card is detected
Preferences> General tab> Import options> Select "Show import dialog when a memory card is detected"
Please let us know if it helps.
Sarika- That box is not checked...