How are you adding the would-be hyperlinks to the table? Ordinarily, just pressing <Enter>, <Tab> or <Space> is enough to turn hyperlink text you've just typed into a working hyperlink.
For existing content, you could use a macro like:
Code:
Sub Demo()
Selection.Range.AutoFormat
End Sub
Simply select the cells with hyperlinks, then run the macro.
For PC macro installation & usage instructions, see:
http://www.gmayor.com/installing_macro.htm