Black bar appeared on the right side of my screen

[panaanxd]

I have a HP LE1901w monitor that i have used with 1440x900 (60hz) settings for about a year now.
Earlier today i was playing with the monitor cord and the black bar just appeared on the right side of the screen. I did not press any buttons, i did not get any messages. The resolution is still the same. I can see the whole screen, its just shrinked. When i try to move the position of the screen in nvidia control panel, the screen moves behind the black bar.

Playing with monitor & display settings, resetting them has not fixed anything.
I also updated my graphic card drivers, that didn't fix anything either.
I also tried to use 1280x1024 resolution, and that way the whole screen was filled (no black bars), but it just appeared awfully stretched.

I'm using windows 7 (64-bit) and i have a Nvidia geforce gts 450.

Any help would be appreciated, I didn't manage to find any solutions with google either.

 

[DaniXks]

well...If when you used the 1280x1024 resolution that bar dissapeared, that gives me the impression that it's the graphics card... the 450 GTS was released 3 years ago...If it was running really hot all this time, maybe that caused the problem

edit: If you have an integrated graphics card, try to use that ( change the BIOS settings ), and see if the problem persists...

If yes, it's the monitor - If no, it's the graphics card

 

[panaanxd]

The computer was bought only about a year ago.
I'll try your suggestion

 

[panaanxd]

The only thing i could find in BIOS was [ configuration > video > primary video adapter] That gave me 3 choices: Auto, PCIe graphics (PEG) and PCI graphics. Tried all the 3 settings, they didn't seem to change anything.

Am i looking in the wrong place? Haven't used BIOS too often, sorry.

 

[DaniXks]

No, you are looking in the right place... apparently your computer doesn't have an integrated graphics card so that method won't work...

 

[panaanxd]

Okay, so i think i might have fixed it. I went under nvidia control panel/change resolution to create a custom resolution for myself. I chose 1440x900 but i changed the hz value to 61 and my screen was fixed. Should have probably looked around a bit more myself, but thanks everyone for your help.

But i have no idea what this really means. Should i still be worried about my monitor or my gpu?
61hz setting froze my computer after using it for 5 minutes. So far i'm fine with 59hz right now. 60hz still has black bars

 

[Ken Okech]

The above solved my problem