UR28M 1.8.3 driver problem

This is the second driver update for the UR28M that hasn’t worked for my system. I’ve had to roll back to 1.7.3 since 1.8.0 and 1.8.3 caused pops/clicks regardless of buffer size. I’m able to go down to 64 samples on 1.7.3 without problems. I have the latest update of Win 7 and the latest version of Cubase 7. The new tools for the UR28M are OK, but the driver has issues here.

Anyone else seeing this?