When I start up the game and start playing, the game appears very sloppy. Some animations seem jumpy. For example, the circle below the selected unit is not rotating smoothly, it gives a "jump" on each rotation at the same spot. All audio appears uncoordinated, sometimes samples are stopped or re-started abruptly, and there are some audible "clicks".
This problem appeared when I installed v1.52, not before.
I managed to find a way to get rid of the problem. When I change screen resolution, the problem disappears completely. It doesn't matter what resolution I actually use, as long as I change it at least once after starting the game. (I want to play with 1280x1024, and that's what I have in the beginning. I go and change it to 1024x768 and then back to 1280x1024, and I don't have the problem any more.)
Athlon 64 3500+
Windows XP
ASUS AX300 (with newest drivers)
p.s. aside from this and the "Check for Updates" crash I haven't had v1.52 give me ANY problems.