. . . certainly, I have yet to witness the screen corruption that you describe.
I've had this problem for a while (prior to v1.0) -- however, version 1.0 made it much worse. Creating a new config file helped, but it didn't make the problem completely go away.
Not a hugh problem, since it doesn't happen all the time, and can be cured by resetting the emulation.
I haven't noticed any other problems (but then again, I haven't done a lot of "testing" lately).