Try going to HM2>HUD Options>Config Properties and make sure the box marked "Always on top" is disabled. If possible try changing to an Aero based Windows desktop theme. Then go to the start menu search and type "performance information and tools", without the quotes, and hit enter. In the new window that pops up click the adjust visual effects link. Choose custom and make sure everything is disabled except the following:
enable desktop composition
enable transparent glass
show thumbnails instead of icons
smooth edges of screen fonts
use visual styles on windows and buttons
Also make sure UAC is disabled according to the following instructions:
http://faq.holdemmanager.com/questio...AC+(Windows+7)
http://faq.holdemmanager.com/questio...ff+UAC+(Vista)