1) Stay online
2) Create WIndows-Live Account (profile too)
3) Start GTAIV.exe - wait - press START
4) Configure Grafik
5) Squip Sequences until you can drive the car to destination, once there skip
another sequenze.
6) Windows-Live now create an autosave
7) Now your camera fucked up ^.^
8) Load Autosave - camera is back to normal, no messed up cars.
Just tested it a few seconds after that. Drove a little through town...
Maybe the fucked up camera bug etc. appears every 5 mins for example, who knows.
Please test yourself after this method.
Have fun, so far ;)
ShadowDuke aka. Revan