I have a userform with a number of tabs and each tab has a number of lines
with similar text boxes on them. The textboxes are populated by a selection
from the one combo box, on the form (not on a tab). The reason for using
only the one combobox and not a separate combobox for each line is because
the list consists of 7,000+ items and was heavy on memory usage.

I have a series of radio buttons down the side of each tab. The user
selects a radio button adjacent to a line then selects from the combobox.
The selected value is populated into the appropriate line on the appropriate
tab. This all works well except for when the user clicks on a new line and
clicks on the same combobox value as was previously used. Because an actual
change of value did not occur the population of the line doesn't happen. I
have played around with different combobox events without much joy.

I have found a similar posting to this one on another forum but
unfortunately there has been no reponse (poor fellow!).

Has anyone any ideas on how I can overcome this problem?

Jane