Murphy's 1st Law: If anything can go wrong, it will

2 days to deadline i installed a package with some updates to parts that shouldn't affect the solution at all, but now all my portals have stopped loading and instead only gives me the below error message no matter what i do to the IDs all over the place.

Server Error in '/' Application. Multiple controls with the same ID '_menu' were found. FindControl requires that controls have unique IDs. Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Web.HttpException: Multiple controls with the same ID '_menu' were found. FindControl requires that controls have unique IDs.

Not the ideal scenario to start my day with, but hopefully i'll have it fixed soon (otherwise it's going to be a loooooong day).. P. UPDATE: well, i don't really know if it was from lack of sleep or stress or something else, but after moving a few more IDs around it's back to normal again.. 2 days & counting..