I installed Entrenchemment. I enjoyed it, loved the new content, but i decided to get rid of it because of the bugs and also because it crashed after 10 mins. Why is this?

Things get worse. When I got rid of it, I uninstalled Sins, reinstalled and played it. As soon as I redownloaded the latest patch, sins does not work anymore. It crashes as soon as I click on the icon.

The game works if it doesnt run through impulse. Ive got it working again but if i run it through impulse it crashes. Ive paid for Entrenchment but since it runs through impulse does this mean i wont be able 2 play it?

What can I do?

thanks in advance