Dim Monitor I have a Samsung SyncMaster 175V monitor. The LCD is dark, I can see my extended desktop, but barely.  Changing the contrast and brightness does nothing.The problem is not with the cord because, I have tried the cable with other monitors, and it works just fine.  When I unplug the video cable from the monitor, a "signal loss" message appears and moves around the screen, but it is not dim at all. I have absolutely no clue what's wrong, my only thought is that maybe the bulb is out.  I hope you guys can tell me what's wrong.

More info on the Dim/fuzzy problem.. When I took it all apart it did work perfectly, until I put it all back together then it quit working again. After about 2hrs of "playing around" I realized the big metal backbone (visible by removeing the entire rear plastic cover) was causing some type of problem since the monitor would work fine until that part was re-installed. After a couple hours of getting mad and checking for shorts and thinking it was creating electrical interference I noticed the main circuit board was extremely bent.. it was bent down in a corner near a ground post. This ground post was being pushed down by the metal cover. By reinstalling the cover this was causing the ground post to move down a little more, pushing on the board even more... I decided to shorten this post and after I cut it I noticed it was a little bit loose... then I realized it was a multi layer circuit board and the ground attaches to several layers.. not just the bottom... so I re-soldered it with about 1/8" of height taken out of it and NO MORE PROBLEMS AT ALL - EVEN RE-ASSEMBLED. Im pretty sure anybody experiencing a dim screen and/or "locked" auto buttons have this exact problem. I did notice depending on how I wiggled the ground post I would either get a dim screen, locked auto button, or both. More info on the Dim/fuzzy problem.. When I took it all apart it did work perfectly, until I put it all back together then it quit working again. After about 2hrs of "playing around" I realized the big metal backbone (visible by removeing the entire rear plastic cover) was causing some type of problem since the monitor would work fine until that part was re-installed. After a couple hours of getting mad and checking for shorts and thinking it was creating electrical interference I noticed the main circuit board was extremely bent.. it was bent down in a corner near a ground post. This ground post was being pushed down by the metal cover. By reinstalling the cover this was causing the ground post to move down a little more, pushing on the board even more... I decided to shorten this post and after I cut it I noticed it was a little bit loose... then I realized it was a multi layer circuit board and the ground attaches to several layers.. not just the bottom... so I re-soldered it with about 1/8" of height taken out of it and NO MORE PROBLEMS AT ALL - EVEN RE-ASSEMBLED. Im pretty sure anybody experiencing a dim screen and/or "locked" auto buttons have this exact problem. I did notice depending on how I wiggled the ground post I would either get a dim screen, locked auto button, or both.