You need to get into EVENT driven code
Essentially, every sheet has a set of events which can fire. The one you need is the SELECTION CHANGE EVENT
To see this, right click on the sheet tab you need to write the code for and choose "View code"
Select "worksheet" from the left side dropdown in the VBE and a Selection_Change sub will be auto generated. Your code would go in there
1st thing to think about is that you don't want the code to fire on EVERY selection change so you need to use the INTERSECT method to test whether your TARGET is within the set of cells that can trigger the code
Once that is done, it is easy enough to get the cell etc as TARGET has all the preperties of RANGE eg VALUE / TEXT / ADDRESS etc
Rgds, Geoff
"Three things are certain: Death, taxes and lost data. Guess which has occurred"
Please read FAQ222-2244 before you ask a question