Monitor stuck in standby

I've had this computer for about... five years give or take, the only thing different on it from factory is a new graphics card or two. The current graphics card I've had for almost a year or so.

My problem is suddenly out of nowhere (no changes that I can think of) my monitor started giving me issues. One day when powering on, my screen would turn on, flash a normal computer start-up process and then go back to sleep-mode/standby, the power button is usually blue, but orange during power save.

Sometimes (like now) I can get it to turn on and stay on but it takes a huge fight on my behalf... I usually open something like control panel while pushing the on then off button repetitively every five seconds (once it blackouts) to get it to decide to stay on. I haven't been able to figure out what makes it stay on but it is getting quite irritating. If it goes into sleep mode, the screen starts giving me issues again.

I have checked my video card driver, I manually installed the latest from the Nvidia website. Still having issues.

Here is what I'm working with.
Operating System: Windows Vista™ Home Premium (6.0, Build 6002) Service Pack 2 (6002.vistasp2_gdr.101014-0432)
System Manufacturer: Dell Inc.
System Model: Dell DXP061
BIOS: Phoenix ROM BIOS PLUS Version 1.10 2.5.0
Processor: Intel(R) Core(TM)2 CPU 6320 @ 1.86GHz (2 CPUs), ~1.9GHz
Memory: 2046MB RAM
Card name: NVIDIA GeForce GTS 250
Monitor: Dell SE198WFP(Digital)
 
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