OK, 2 questions, likely unrelated.
1) When I start or restart my computer, sometimes the computer will essentially "stop loading" after the windows logo. This is sort of like http://www.daniweb.com/forums/thread15125.html, except there is no windows startup noise. I have a Dell 1907FP monitor with both an analog and a digital connection: I've switched through both with no avail. When this happens, I just turn it off manually and start it again after 10 minutes or so. Usually, it will work after this, though not always.
2) My Power Supply Fan is making a lot of noise, similar to http://www.daniweb.com/forums/thread63889.html. Could this be related to my monitor situation? I was thinking about upgrading the Power Supply soon anyways, so it shouldn't be a big deal. However, are there any dangers to upping the wattage that a power supply produces (mine is at 375W right now, I would like a 500W)? I want a new video card soon that requires more wattage than my current power supply, but I would be hesitant if it could cause harm to my computer.
One last thing... a few times recently, my computer has shown a NMI: Parity Check ...or something along those lines upon startup (like http://support.microsoft.com/kb/222973). Could my RAM be causing this problem? I installed 2 GB of RAM about 2-3 months ago, and the black screen problems "might" have started soon after. Unfortunately, I didn't keep track of when this started.
If you need any more info, please feel free to ask. Thanks!