Linking worksheets

Hi guys!

I really need your help with something.

I have linked data between different excel workbooks. Everything worked fine yesterday, but today when I opened the books, it says #REF in aaall of my cells that are linked to another workbook! I also got a security warning or something that links were disabled. And there was a button named "enable" that I clicked on. But nothing works.

There is just tooo much work to redo everything again and collect the values before deadline. I'm screwed...

Does anyone know if this problem is solveable? All help appreciated!
Regards, Sabina