Give this a try:


From Vista's Start Button/ Right click 'Computer'/ select 'properties'.

Control Panel / System Window appears. Under 'Tasks' select "System Protection".

Sytem Properies window opens...select 'Advanced'/ Performance Settings / DEP [data execution...]/

Check "Turn on DEP for all....."

Hit the "Add" button and locate Xara Xtreme Pro 4.0 exe file.

..........and hopefully....you will be back in business!

Minstrel