Operation Flashpoint 1.3 NOCD problem

[Lemmylou]

Hello,

I've tried to install the Operation Flashpoint 1.3 NO CD patch.
I,ve followed the described steps:
1. install version 1.2
2. update version 1.3 with no cd patch
3. install version 1.3

After that, without the CD in the drive, I still get the error "insert the correct CD".