Can't use mouse to enter notes (Windows 7 - MuseScore 1.2)

• Sep 21, 2012 - 11:57

I have downloaded MuseScore 1.2 on my laptop with Windows 7 but I cannot use the mouse to enter notes nor to place the cursor. I can only use te mouse to choose from the palettes.

I also get a strange horizontal blue line on the screen (as attached).

Help would be much appreciated.

Thank you
Mona

Attachment Size
CannotUseMouse.png 72.01 KB

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