[Ixoth]

In display options there is troubleshoot tab where u can use using the slider to set the the hardware acceleration. U can see from text below what that setting actually does - one is to disable hardware cursor. you should try that as a fix for your cursor problems as well.

I don't these days play game in two windows so I cannot help in that, I use two computers when I box.

I'd suggest you to try different client than the labby client I have had many crashing issues with that client, and I've used cata client as it seems more stable (atleast in my desktop computer). If you are not much venturing in labby then why use labby client at all if DR/cata client is more stable? (might run even faster fyi).

Try those suggestions.

You can these days easily download whatever client from GOA's site - in various languages. I use german versions of client, to circumvent the house rent pay issues.