[AkiraR]

If you are using Windows XP - Service Pack 2, you don't need to use compatibility mode. Secondly, check within your installer on whether or not it's fully be installed. If you reply with you downloaded elsewhere then buy a legitimate copy. If this is a legitimate copy and you are trying to play then make sure you have DirectPlay installed followed by the proper DirectX 9 installed too. The same goes for Microsoft Visual too. As mentioned above do a complete fresh install, assure your drivers and minimum requirements are met, TRY USING SINGLEPLAYER first, and then at which point launch SAMP Debug and drive around for a minute or two. Afterwards go ahead and try playing on a server.