Help with The Regiment please

[colinm1]

Have used the No CD crack as supplied by Gamecopy world.
Game starts fine, lets me play the Training all the way through without any problems.

However when come to start 1st Mission "THE EMBASSY" after starts to load I get the following message:

"Can't change resolution whilst render device is locked"

I click next button for further information and get the following message:

"Critical Error"

Create texture failed (8007000=E_out of memory.)

My system is:

Pentium4 3.2Ghz
1GB Dual Channel Memory
FX 5900XT Graphics
Creative Audigy Sound Card
Samsung 970P Digital Monitor (Native res: 1280 x 1024)
but have set res to 1024 x 768 as this default for game, have also tried my monitor's native res .but get the same problem.

I have left all configurations set to default

Never had a problem like this before with any game, I would be very grateful if any one has an answer.

Thanks for your help