When I´m trying to start the Visual Basic Editor I get the error message "VBA interface error: unable to get IDE...".
Find the directoryC:\Program Files\Common Files\Microsoft Shared\VBA\VBA6\ (32 bit operating system)orC:\Program Files (x86)\Common Files\Microsoft Shared\VBA\VBA6\ (64 bit operating system)
It should contain a directory 1033 at least. "1033" also stands for the English country code.
If the country settings of the machine differ fromt the English settings, there must be an appropriate folder for your country settings. For example "1031" for Germany. In this case create this folder and copy the contents of folder "1033" to folder "1031". Find your code here: http://technet.microsoft.com/en-us/library/dd346950.aspx, section "Language Codes".