Issues with Mathcad 15 on Windows 7
I've installed Mathcad 15.0 (M010 [MC15_M010_20110622]) on my PC which recently has been migrated to windows 7 Enterprise (Version 6.1, Build 7601: Service Pack 1) and I can't get rid of some issues.
1. If I place a X-Y-Plot (or any other plot) on a (new) worksheet and try to change the traces format (via context menue -> Format -> Traces) I can not see the list of traces, just some empty space on the dialog window.
If I select another tab within the Formatting window then Mathcad freezes. An arror message occures ("Warning: An internal error has occurred. Please save your work and exit.") and I have to kill Mathcad with Windows' task manager.
2. Range variables behave strange. I can define them and use them for calculations. But if I want to see the values (e.g. 'x=') then there are only two placeholders shown.
I've alread repaired and reinstalled Mathcad. I also tried to start the installation by "Run as administrator" and I also "Mathcad15WixInstaller.msi" only.
No success so far.
Can anybody give some further suggestions please?

