I have the same issue my friend, however my GTA works without RPH, but where's the fun in that, right? I can try to help you however, when loading with RPH, what happens? And also, do you use OPEN IV to install texture mods etc? If so, open OPEN IV and rename the "mods" folder to "_mods", this will disable the mods, but if the game loads correctly with LSPDFR on GTA, then we have narrowed down your problem, if not then we will have to try something else.