Mobility Radeon HD4850 Resolution

NEVERLOST911

Honorable
Nov 10, 2015
2
0
10,510
Hey , like 3 months before i was using Radeon HD5450 ( 64 Bit 512 MB) And i waas able to set my screen resolution up to 1920x1200. Then i bought new card Mobility Radeon HD4850 ( 256 Bit 1GB) everything works perfect except 1 thing. İ Cant set my resolution higher than 1366x768. İ tried everything , formatted my system , installed another os , but nothing worked. I Even tried Resolution Changer problems but i got no solution. How can i set my resolution to 1920x1200 or 1600x1200?
Thanks for helping