Grand Theft Auto 4 (GTA 4) Discussion
And maybe the problem is with your disk dirve.
Anyway the reason is unabling to read files.
That's for sure.
Let's go back to first problem now.
Not installed SP1/SP3
System is to weak
If both are not true try to contact Take2 support , they are there to help.
* Updated game trainers and cheats daily
* Get notified when new cheats are added
* Request which games get new trainers
* Priority support with any problem