I try to install Worms 4 Mayhem but there appears this message:
http://img50.imageshack.us/img50/2124/cigg6.th.png (http://img50.imageshack.us/my.php?image=cigg6.png)
I try all,Install the crack,install the graphic card drivers,disable the antivirus,close all windows,but none :(

I need your help

PS:my graphic card is S3 Graphics ProSavageDDR and my Proccesors are Intel(R) CPU 2.00GHz

If by Crack you mean you illegally downloaded this, you will have no help here.

I discover,the problem is with the cd, i can install but i cant play because serial problems

Where did you get your copy of W4M from?

I Downloaded it

I Downloaded it
If you downloaded it from Trygames/TryMedia, get a refund and buy the CD/DVD version from https://secure.team17.com - the Trymedia version is a rip-off.

If you downloaded it from anywhere else and as a result did not pay for the game, please leave this forum now as we do not provide tech support to pirates here.

No,I paid for it

Yes, but where from? It's possible you didn't buy it from an authorized source, especially if the instructions involve installing a crack.