Any way to set a campaign complete?

[Londo]

I've been trying to complete the tanker alley mission in Operation Drumbeat for the last 3 days. For some reason the game crashes about every 5-10 minutes. I have updated all my drivers and the game played reasonable well up to this point. (I had occasional crashing on some of he other missions in the game, but not like this). I complete freezes my computer and I have to do a hard reboot. With so many crashes I have run scandisk several times to try and correct any errors. Any help would be appreciated

Thank You

[Londo]

I surrender, Played long enough to sink 1 tanker then crashed 2 times in a row. Hopefully the patch will help...crossing fingers