I have a button on a worksheet which performs certain functions on the active worksheet.
It then performs functions on another worksheet within the same workbook.
It's at this point that I encounter Error 1004, "Select method of Range class failed."

Sample:
ThisWorkbook.Sheets("Sheet2").Activate
Range("A1").Select

Even if I refer to the range explicitly, the error persists.
Sample:
ThisWorkbook.Sheets("Sheet2").Range("A1").Select

This problem does not occur when run under Kingsoft.