Compiz window preview is funny (and buggy)

[J Phani Mahesh]

Two issues here.
1.Window previews dont disappear at times when mouse is pulled away from launcher. I need to mouseover an icon without windows open (like swither) to hide preview.
2.Only a screenshot can make things clear. Please find attatched few screenshots. View them, and then start reading the rest.

Description:

Window preview appears when i hover mouse, thats good; but the preview corresponding to lower icon appears..
Dont kow how better to put it..
For example, if the home launcher is below dash launcher, and i have a nautilius window open, to get a preview of nautilus, i need to hover over dash icon..

After some observtion with telescopes, microscopes and god knows what, i found this:
To see the priview, i need to hover on the top half of the proper icon or lower half of the icon on its top. This became clear when many windows are open.

Its a funny UI bug, but it must be corrected. I dont want to see people making fun of our Ubuntu.. :)

Seps to reproduce:
1. Log into a Ubuntu Oneiric machine with Unity UI
2. install ccsm if not already present.
3. open ccsm, enable window preview plugin
4. open few windows, hover on their icons in launcher
5. Laugh for a while, and click this bug affects me too!! :P

Here is the output of apt-cache policy compiz:
compiz:
  Installed: 1:0.9.6+bzr20110929-0ubuntu6.1
  Candidate: 1:0.9.6+bzr20110929-0ubuntu6.1
  Version table:
 *** 1:0.9.6+bzr20110929-0ubuntu6.1 0
        500 http://repo.iitd.ernet.in/ubuntu/ oneiric-updates/main amd64 Packages
        100 /var/lib/dpkg/status
     1:0.9.6+bzr20110929-0ubuntu3 0
        500 http://repo.iitd.ernet.in/ubuntu/ oneiric/main amd64 Packages

PS: I use local repos maintained by my institute. These are updated daily.

Other Changes i did in ccsm: (one of them may be responsible; Who knows?)
* The full profile is here. (default values skipped)
[water]
s0_initiate_key = <Control>space
s0_title_wave = true

[unityshell]
s0_launcher_hide_mode = 1
s0_alt_tab_bias_viewport = true
s0_backlight_mode = 4
s0_panel_opacity = 0.000000
s0_launcher_opacity = 0.340300
s0_icon_size = 32

[resizeinfo]
s0_always_show = true

[opengl]
s0_lighting = true

[unitymtgrabhandles]
s0_toggle_handles_key = <Super>space

[wobbly]
s0_snap_inverted = true
s0_shiver = true

[core]
s0_active_plugins = core;bailer;detection;composite;opengl;compiztoolbox;decor;move;place;mousepoll;grid;resize;annotate;gnomecompat;imgpng;thumbnail;vpswitch;session;regex;water;wall;dbus;resizeinfo;unitymtgrabhandles;wobbly;animation;expo;workarounds;fade;scale;ezoom;scaleaddon;unityshell;

[animation]
s0_open_effects = animation:Random;animation:None;animation:Fade;
s0_open_random_effects = animation:Curved Fold;animation:Horizontal Folds;animation:Dream;animation:Fade;animation:Glide 1;animation:Glide 2;animation:Magic Lamp;animation:Magic Lamp Wavy;animation:Sidekick;animation:Wave;animation:Zoom;
s0_close_effects = animation:Random;animation:Fade;animation:None;
s0_close_random_effects = animation:Curved Fold;animation:Horizontal Folds;animation:Dream;animation:Fade;animation:Glide 1;animation:Glide 2;animation:Magic Lamp;animation:Magic Lamp Wavy;animation:Sidekick;animation:Wave;animation:Zoom;
s0_minimize_effects = animation:Random;
s0_sidekick_num_rotations = 0.776500
s0_sidekick_springiness = 0.065900
s0_sidekick_zoom_from_center = 3
s0_zoom_from_center = 3

[gnomecompat]
s0_main_menu_key = Disabled
s0_run_key = Disabled

[jhfhlkjlj (fdsuufijjejejejej-deactivatedaccount)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. This particular bug has already been reported and is a duplicate of bug 736973, so it is being marked as such. Please look at the other bug report to see if there is any missing information that you can provide, or to see if there is a workaround for the bug. Additionally, any further discussion regarding the bug should occur in the other report. Feel free to continue to report any other bugs you may find.