Mouse problem - losing control while moving

[deven1313]

Hi. I have only been playing for a few days and I'm totally loving getting to play this game again! However, I have a problem that is quite annoying.

I am playing in windowed-mode on Windows 10. Every now and then when I'm walking/running, I lose mouse control and the mouse arrow disappears. I then can't stop running and have to use my /sit hotkey to stop. I noticed that when this happens, the EQ window has shifted down a little so a bit of my desktop is exposed. So it seems like something is triggering the desktop behind the EQ window.

I suspect it has something to do with the fact that I hold down the left mouse button to move forward, while using the right to aim left/right. So often, both mouse keys are pressed while I'm walking/running. Mouselook is on. But, I can't seem to reproduce it consistently. Has anyone heard of this and know of a fix?