Hi! I recently have been running linux mint 11 from the liveCD, (until I get around to running installing windows on a spare drive so that I can try to run the gigabyte motherboad flash utility, b/c my bios is corrupted and won't read the bios update file even from a fat16 flash drive... lol, I don't know... I maybe have to stop looking at anti-occupation, ****, or 9-11 sites) The following may only apply to those running linux mint 11 running compiz.
But yes! I have the exact same problem, and was almost thinking of never installing mint 11, and maybe going back to opensuse but there on the weird Unity shell as well. When you have a 23" monitor and every time you move a window along the top and it wants to maximize the window as soon as it snaps to the top, this is EXTREMELY annoying.
This is what I learned to FIX this small, but extremely irritating inconvenience:
***first, goto Menu>Preferences>CompizConfig Settings Manager>Window Management
or: Menu>Control Center>CompizConfig Settings Manager>WindowManagement (in case your on the favorites view of your main menu)
Then, you can simply disable Grid, as someone mentioned...
***or better fix only the specific problem:
***Click Grid>Edges>Resize Actions>Top Edge - select: NONE
Really most people never use Grid, but it is useful when you look through the menu options and understand what it does:
*Pushing the mouse cursor while dragging a window titlebar past the left screen edge will resize the window to fit the left half of the screen. Likewise if pushing past the right edge of the screen.
You can see on the Grid>Edges>Resize Actions list that the corners can be set up so that when you drag off into a corner while the mouse while is dragging a window titlebar, then it will reorient itself to snap to the corner (at one quarter size), which can be useful for large multitasking screens. for example, set upper left corner>top left corner and respective corners... However, there is a bug that sometimes the titlebar will be above the top of the screen (as with my settings menu, but not with my firefox), then you have to know to hold ALT in order to drag the window body... or if inconsequential, just closing the window by right-clicking on the taskbar and reopening it.
//below just comments and opinion
really, there are too many options, it's a time-sucker. It's a tragedy that the default grid behavior seems buggy. Major time suck.
There is NO reason that a window dragged along the top should want to automatically maximize. This type of bug needs to be fixed before a major release.
When moving a window close to the top, the most logical default behavior is snapping to the top.
Likewise the bottom edge of a dragged window should want to snap to the bottom. Or to the sides. This is good default interface design.
IMHO, The only time a window should resize is when dragging it off the screen, as for those useful resize options mentioned.
Because you can already maximize a window by double-clicking the titlebar or pressing the + or max button, there is no reason to have the new irritating default behavior (maximizing), unless you're on miniature netbook screen, where a window is best maximized 99% of the time.
The only useful default functionality I can think of is similar to the grid behavior that I described concerning the other resize actions, which seem to happen when dragging a mouse cursor off the left or right side of the screen. For the top or bottom, it would be useful if this would keep a window the same width, but simply max its vertical size. This would be useful default behavior. at the moment it maximizes WITHOUT me even dragging it off the screen edge (like with the other edge resize actions); this is clearly inconsistent edge resize action behavior, and my conclusion is that this behavior of the compiz Grid mechanism is buggy, and hopefully they are working on this, as I don't have time to submit a bug report.
The key bindings to ctrl+alt+numpad# are also pretty useful. Just try them.
As I already wasted much more than 15minutes trying to fix the annoying problem, I thought I would waste a few more trying to share my discovery.
Best wishes. Mint is pretty nice. Just wish the default search engine setup wasn't so irritating. It would be nice to have a one-click contribute and revert mint to default firefox behavior.