Be sure your display resolution is set for 1024 x 768 or higher, and small fonts (96 dpi). You can set resolution by going to: Start > Settings > Control Panel > Display > Settings. Note that 800x600 resolution is no longer supported.
Set fonts to 100% (96 dpi) by clicking Control Panel\Appearance and Personalization\Display.
These three registry entries must be set:
HKEY_LOCAL_MACHINE\SOFTWARE\Bennet-Tec\MetaDraw\3.0\User Name = Enercalc L 12895
HKEY_LOCAL_MACHINE\SOFTWARE\Bennet-Tec\MetaDraw\3.0\Serial Number = MD300010784A
HKEY_LOCAL_MACHINE\SOFTWARE\Bennet-Tec\MetaDraw\3.0\Run-Time Code = 374A6D164B0EC5EB