wynnstate

ArmA worked after I initially installed it. Now that i have updated it to 1.08 (it was the US retail version 1.06) when i click on the application, the hard disk hums and the hour glass appears next to the cursor, but then it stops and goes back to normal idle state. I have a 64bit processor and OS, is this the problem? or is it something else?

I just finished installing a few hundred addons and tried opening operation flashpoint. When i click on the icon it dispays the operation flashpoint resistance logo then returns to the desktop. A few seconds later a black screen appears and then it closes and pops up a message that says. "Can't memory-map file 'dta\music.pbo" I opened the program succesfully when i had installed most of the addons, but after the last few it won't work. I am not sure if i can isolate the addons that are the problems, any suggestions?