yes.
in this example combo box values = a,b,c
here is some code. but its not totally vb code, just how it will work
-------------------------
dim combval as string
combval = Combobox.Value
if combval = a Then
display pic 1
else if combval = b Then
display pic 2
else if combval = c Then
display pic 3
endif
-------------------------
'if you want it to open a image file then use where it says "display pic 1"
followhyperlink ("c:\myfolder\pic1.jpg")
hope this helps
DAL