I have Maple 11 installed on PC running on Vista, the classical version works fine, but the standard version doesn't. In fact I'm not even able to open it. I've tried uninstalling Maple 11 to reinstall it after but the uninstallation process doesn't run neither. I also tried reinstalling Maple 11 over my existing installation but the installation process shuts because Maple Reader is already installed. Now Maple 11 doesn't even display in my list of installed programs. How to get that fixed?

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