I didnt have this problem until I changed some settings.. I was having the round windows start button always ontop in MP (windows 7). This is what I changed and what I presume caused the mouse issue.. incase it helps figure out what is causing it to start happening.
First of all I ran through the setup wizard within mediaportal. This then made mediaportal not start in full screen
I changed to enable fullscreen startup and enable auto hide taskbar. This made MP crash.
Disabled auto hide task bar and enabled always on top. This made MP work, but mouse stopped disapearing.
Changed xml to yes from no and everything works fine. Does appear like something above disabled mouse autohide.
What I guess happend is:
* There once was an option to auto hide the mouse. Some people had the option set to yes, others to no.
* The devs decided that there is no reason on htpc sw not to auto hide the mouse (true), so they removed the configuration option.
* But as it was easier, they kept the original code and the config setting in the xml file. In the new standard file (used when freshly installing MP) the setting was set to yes.
* But when upgrading, MP keeps your settings as they are (it might add a few, but usually it does not change them). So
* People that upgraded from previous version had the original setting (some were set to no) and no way of changing the setting any more.
* They started a support thread in the forum and someone found the original setting in the xml.
* I am commenting on how this occured ;-)
What do we learn from this: Development is a tough task and somehow requires people to think a lot of parallel solutions at the same time. There are no short cuts in development.
Erm. No. Mine was a fresh install of MP on a fresh install of Windows 7. I clearly said what I believe triggered the problem and none of it involved reinstalling or upgrading MP?
In case anyone does come back this way... this is the problem and the wizard was setting the hide mouse option to no. This has been fixed (well removed) in 1.2