Hello.
About 2 weeks ago my computer screen started rolling up and down by itself, kind of like a nervous ‘twitch’. The mouse arrow keeps steady though.
Only the desktop is okay, as soon as I open a program (FIREFOX, IE, Outlook Express, WORD processing/Office) the screen starts acting funny.
I tried to adjust the monitor settings and cleaned the mouse.
I ran Spybot Search & Destroy, Ad-Aware, CCleaner, CW Shredder and SPYWARE doctor and Trend Micro Anti-Spyware – nothing helped.
My firewall and anti-virus protection has always been up and RUNNING (Zonealarm).
I even restored the computer to an earlier point.
Nothing helped!
I don’t know what else to do, but this twitching screen is driving me crazy. Can you help please ??
Does device manager show anything like ! or a ? for the video card ?

Have you checked for updated video drivers?

Do you have a spare monitor you can plug in and see if the problem is still there?

Alan  What are your normal display settings?  DESCRIBE the behavior you see in more detail.  What mouse do you have?  Have you tried updating the mouse driver?  Do you have another mouse you can try with your computer?  Remove and reseat the video card and make sure you have the most current drivers. You didn't say what it was, or anything about the machine, or age, so.......

What is the make/model of the monitor as well?