http://bugs.winehq.org/show_bug.cgi?id=18371
Summary: Lord of the Rings Online: mouse cursor corrupted on focus change Product: Wine Version: 1.1.20 Platform: Other OS/Version: other Status: UNCONFIRMED Severity: enhancement Priority: P2 Component: -unknown AssignedTo: wine-bugs@winehq.org ReportedBy: daniel.santos@pobox.com
When playing Lord of the Rings Online in windowed mode and changing the focus away from and back to the game, the mouse cursor becomes corrupted. The corrupted image may be blank or it may be a large area of animated gibberish. Once you are able to position the cursor over an object in the game that normally changes the cursor it is restored, so there is a work around, although it can be difficult to do, especially when the cursor image is completely blank. It is usually necessary to move the mouse outside of the game window and position it so that you are on either the x or y axis of the object in the game window you want to mouse over and then move slowly along the other axis until it changes.
This bug has existed since Book 11 and exists up to the current version (Mines of Moria) and for the last year (so around wine 0.9.something).
Other notes: LOTRO can have very large mouse cursors (perhaps up to 100x300 pixels), so I'm not certain which API they are using.