I updated BF2 with patch 1.41 with no hitch, but for the new 1.5 patch I hit run, this comes up, I hit allow, and it dissapears. Nothing else, no matter how long I wait. This has happened before in the past on vista if I recall, but I never got a fix. I think I just woke up one day, retried it, and it worked.
If anyone knows how to fix this problem, it would be lovely.